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2902642056 = 233261660893
BaseRepresentation
bin1010110100000010…
…1100110110001000
321111021211111100100
42231000230312020
521421034021211
61200005405400
7131634023166
oct25500546610
97437744310
102902642056
11125a513a36
12690109860
133734874a2
141d7702236
1511ec62156
hexad02cd88

2902642056 has 48 divisors (see below), whose sum is σ = 7990208460. Its totient is φ = 951684480.

The previous prime is 2902642051. The next prime is 2902642069. The reversal of 2902642056 is 6502462092.

2902642056 is a `hidden beast` number, since 2 + 9 + 0 + 2 + 642 + 0 + 5 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2886912900 + 15729156 = 53730^2 + 3966^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2902642056.

It is not an unprimeable number, because it can be changed into a prime (2902642051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 326055 + ... + 334838.

Almost surely, 22902642056 is an apocalyptic number.

It is an amenable number.

2902642056 is an abundant number, since it is smaller than the sum of its proper divisors (5087566404).

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

2902642056 is a wasteful number, since it uses less digits than its factorization.

2902642056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660966 (or 660959 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 2902642056 is about 53876.1733607724. The cubic root of 2902642056 is about 1426.4760830325.

The spelling of 2902642056 in words is "two billion, nine hundred two million, six hundred forty-two thousand, fifty-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 61 72 122 183 244 366 488 549 732 1098 1464 2196 4392 660893 1321786 1982679 2643572 3965358 5287144 5948037 7930716 11896074 15861432 23792148 40314473 47584296 80628946 120943419 161257892 241886838 322515784 362830257 483773676 725660514 967547352 1451321028 2902642056