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308056101 = 3192284447
BaseRepresentation
bin10010010111001…
…001000000100101
3210110122212112020
4102113021000211
51112330243401
650322413353
710430301513
oct2227110045
9713585466
10308056101
11148987121
1287201259
134ba8b922
142ccad4b3
151c0a0d36
hex125c9025

308056101 has 12 divisors (see below), whose sum is σ = 433498752. Its totient is φ = 194561064.

The previous prime is 308056097. The next prime is 308056121. The reversal of 308056101 is 101650803.

It is not a de Polignac number, because 308056101 - 22 = 308056097 is a prime.

It is a super-2 number, since 2×3080561012 = 189797122726644402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308056121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141141 + ... + 143306.

It is an arithmetic number, because the mean of its divisors is an integer number (36124896).

Almost surely, 2308056101 is an apocalyptic number.

It is an amenable number.

308056101 is a deficient number, since it is larger than the sum of its proper divisors (125442651).

308056101 is a wasteful number, since it uses less digits than its factorization.

308056101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284488 (or 284469 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 308056101 is about 17551.5270275837. The cubic root of 308056101 is about 675.3723421710.

The spelling of 308056101 in words is "three hundred eight million, fifty-six thousand, one hundred one".

Divisors: 1 3 19 57 361 1083 284447 853341 5404493 16213479 102685367 308056101