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67966976 = 211711431
BaseRepresentation
bin1000000110100…
…01100000000000
311201220002011102
410003101200000
5114344420401
610424433532
71453465310
oct403214000
9151802142
1067966976
1135402660
121a9188a8
131110935c
149053440
155e7856b
hex40d1800

67966976 has 96 divisors (see below), whose sum is σ = 169827840. Its totient is φ = 26419200.

The previous prime is 67966967. The next prime is 67966999.

It is a happy number.

67966976 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157481 + ... + 157911.

It is an arithmetic number, because the mean of its divisors is an integer number (1769040).

Almost surely, 267966976 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 67966976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84913920).

67966976 is an abundant number, since it is smaller than the sum of its proper divisors (101860864).

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

67966976 is a wasteful number, since it uses less digits than its factorization.

67966976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 451 counting only the distinct ones).

The product of its digits is 5143824, while the sum is 56.

The square root of 67966976 is about 8244.2086339442. The cubic root of 67966976 is about 408.0994246993.

The spelling of 67966976 in words is "sixty-seven million, nine hundred sixty-six thousand, nine hundred seventy-six".

Divisors: 1 2 4 7 8 11 14 16 22 28 32 44 56 64 77 88 112 128 154 176 224 256 308 352 431 448 512 616 704 862 896 1024 1232 1408 1724 1792 2048 2464 2816 3017 3448 3584 4741 4928 5632 6034 6896 7168 9482 9856 11264 12068 13792 14336 18964 19712 22528 24136 27584 33187 37928 39424 48272 55168 66374 75856 78848 96544 110336 132748 151712 157696 193088 220672 265496 303424 386176 441344 530992 606848 772352 882688 1061984 1213696 1544704 2123968 2427392 3089408 4247936 4854784 6178816 8495872 9709568 16991744 33983488 67966976