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307864434 = 23432235351
BaseRepresentation
bin10010010110011…
…010001101110010
3210110022010121110
4102112122031302
51112303130214
650314334150
710425542643
oct2226321562
9713263543
10307864434
11148866119
128712a356
134ba22607
142cc5d6ca
151c064159
hex1259a372

307864434 has 32 divisors (see below), whose sum is σ = 632991744. Its totient is φ = 99766800.

The previous prime is 307864423. The next prime is 307864471. The reversal of 307864434 is 434468703.

It is a junction number, because it is equal to n+sod(n) for n = 307864392 and 307864401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54859 + ... + 60209.

It is an arithmetic number, because the mean of its divisors is an integer number (19780992).

Almost surely, 2307864434 is an apocalyptic number.

307864434 is an abundant number, since it is smaller than the sum of its proper divisors (325127310).

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

307864434 is a wasteful number, since it uses less digits than its factorization.

307864434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5622.

The product of its (nonzero) digits is 193536, while the sum is 39.

The square root of 307864434 is about 17546.0660548170. The cubic root of 307864434 is about 675.2322449117.

The spelling of 307864434 in words is "three hundred seven million, eight hundred sixty-four thousand, four hundred thirty-four".

Divisors: 1 2 3 6 43 86 129 223 258 446 669 1338 5351 9589 10702 16053 19178 28767 32106 57534 230093 460186 690279 1193273 1380558 2386546 3579819 7159638 51310739 102621478 153932217 307864434