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82502641 = 13149191223
BaseRepresentation
bin1001110101011…
…10001111110001
312202020120100101
410322232033301
5132110041031
612104152401
72021155324
oct472561761
9182216311
1082502641
1142630501
1223768701
1314128540
14ad587bb
15739a361
hex4eae3f1

82502641 has 16 divisors (see below), whose sum is σ = 90316800. Its totient is φ = 74911680.

The previous prime is 82502603. The next prime is 82502653. The reversal of 82502641 is 14620528.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-82502641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82502041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369856 + ... + 370078.

It is an arithmetic number, because the mean of its divisors is an integer number (5644800).

Almost surely, 282502641 is an apocalyptic number.

It is an amenable number.

82502641 is a deficient number, since it is larger than the sum of its proper divisors (7814159).

82502641 is a wasteful number, since it uses less digits than its factorization.

82502641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 82502641 is about 9083.0964433942. The cubic root of 82502641 is about 435.3340297815.

The spelling of 82502641 in words is "eighty-two million, five hundred two thousand, six hundred forty-one".

Divisors: 1 13 149 191 223 1937 2483 2899 28459 33227 42593 369967 431951 553709 6346357 82502641