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82681002 = 23243106823
BaseRepresentation
bin1001110110110…
…01110010101010
312202120122000100
410323121302222
5132131243002
612112050230
72022530325
oct473316252
9182518010
1082681002
1142742508
1223833976
131418b791
14ada37bc
1573d311c
hex4ed9caa

82681002 has 24 divisors (see below), whose sum is σ = 183309984. Its totient is φ = 26919144.

The previous prime is 82680971. The next prime is 82681009. The reversal of 82681002 is 20018628.

It is a super-2 number, since 2×826810022 = 13672296183448008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82681009) 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, 52638 + ... + 54185.

It is an arithmetic number, because the mean of its divisors is an integer number (7637916).

Almost surely, 282681002 is an apocalyptic number.

82681002 is an abundant number, since it is smaller than the sum of its proper divisors (100628982).

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

82681002 is a wasteful number, since it uses less digits than its factorization.

82681002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106874 (or 106871 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 82681002 is about 9092.9094353788. The cubic root of 82681002 is about 435.6475176277.

The spelling of 82681002 in words is "eighty-two million, six hundred eighty-one thousand, two".

Divisors: 1 2 3 6 9 18 43 86 129 258 387 774 106823 213646 320469 640938 961407 1922814 4593389 9186778 13780167 27560334 41340501 82681002