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83975808 = 273724463
BaseRepresentation
bin1010000000101…
…01111010000000
312212000102011010
411000111322000
5132444211213
612155520520
72036532300
oct500257200
9185012133
1083975808
11434472a4
1224159140
1314522c37
14b21d600
15758bac3
hex5015e80

83975808 has 96 divisors (see below), whose sum is σ = 259536960. Its totient is φ = 23987712.

The previous prime is 83975803. The next prime is 83975813. The reversal of 83975808 is 80857938.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (83975803) and next prime (83975813).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (83975803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16585 + ... + 21047.

It is an arithmetic number, because the mean of its divisors is an integer number (2703510).

Almost surely, 283975808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83975808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129768480).

83975808 is an abundant number, since it is smaller than the sum of its proper divisors (175561152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83975808 is a wasteful number, since it uses less digits than its factorization.

83975808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4494 (or 4475 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 83975808 is about 9163.8315130736. The cubic root of 83975808 is about 437.9098665682.

The spelling of 83975808 in words is "eighty-three million, nine hundred seventy-five thousand, eight hundred eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 64 84 96 98 112 128 147 168 192 196 224 294 336 384 392 448 588 672 784 896 1176 1344 1568 2352 2688 3136 4463 4704 6272 8926 9408 13389 17852 18816 26778 31241 35704 53556 62482 71408 93723 107112 124964 142816 187446 214224 218687 249928 285632 374892 428448 437374 499856 571264 656061 749784 856896 874748 999712 1312122 1499568 1713792 1749496 1999424 2624244 2999136 3498992 3998848 5248488 5998272 6997984 10496976 11996544 13995968 20993952 27991936 41987904 83975808