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82570937 = 107771691
BaseRepresentation
bin1001110101111…
…10111010111001
312202101001000212
410322332322321
5132114232222
612105440505
72021561411
oct472767271
9182331025
1082570937
1142677849
12237a0135
1314150657
14ad75641
1573b06e2
hex4ebeeb9

82570937 has 4 divisors (see below), whose sum is σ = 83342736. Its totient is φ = 81799140.

The previous prime is 82570931. The next prime is 82570951. The reversal of 82570937 is 73907528.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82570937 - 222 = 78376633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82570894 and 82570903.

It is not an unprimeable number, because it can be changed into a prime (82570931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385739 + ... + 385952.

It is an arithmetic number, because the mean of its divisors is an integer number (20835684).

Almost surely, 282570937 is an apocalyptic number.

It is an amenable number.

82570937 is a deficient number, since it is larger than the sum of its proper divisors (771799).

82570937 is a wasteful number, since it uses less digits than its factorization.

82570937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771798.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 82570937 is about 9086.8551765724. The cubic root of 82570937 is about 435.4541203722.

The spelling of 82570937 in words is "eighty-two million, five hundred seventy thousand, nine hundred thirty-seven".

Divisors: 1 107 771691 82570937