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307923234 = 23194795639
BaseRepresentation
bin10010010110101…
…000100100100010
3210110102010021020
4102112220210202
51112312020414
650315510310
710426206243
oct2226504442
9713363236
10307923234
111488a6313
1287158396
134ba432c8
142cc76cca
151c0767a9
hex125a8922

307923234 has 32 divisors (see below), whose sum is σ = 649728000. Its totient is φ = 97018704.

The previous prime is 307923233. The next prime is 307923263. The reversal of 307923234 is 432329703.

It is a junction number, because it is equal to n+sod(n) for n = 307923195 and 307923204.

It is not an unprimeable number, because it can be changed into a prime (307923233) 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 15 ways as a sum of consecutive naturals, for example, 51787 + ... + 57425.

It is an arithmetic number, because the mean of its divisors is an integer number (20304000).

Almost surely, 2307923234 is an apocalyptic number.

307923234 is an abundant number, since it is smaller than the sum of its proper divisors (341804766).

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

307923234 is a wasteful number, since it uses less digits than its factorization.

307923234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6142.

The product of its (nonzero) digits is 27216, while the sum is 33.

The square root of 307923234 is about 17547.7415640874. The cubic root of 307923234 is about 675.2752304211.

It can be divided in two parts, 30792 and 3234, that multiplied together give a triangular number (99581328 = T14112).

The spelling of 307923234 in words is "three hundred seven million, nine hundred twenty-three thousand, two hundred thirty-four".

Divisors: 1 2 3 6 19 38 57 114 479 958 1437 2874 5639 9101 11278 16917 18202 27303 33834 54606 107141 214282 321423 642846 2701081 5402162 8103243 16206486 51320539 102641078 153961617 307923234