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310428712 = 23114197887
BaseRepresentation
bin10010100000001…
…100010000101000
3210122010102010201
4102200030100220
51113432204322
650445321544
710456412656
oct2240142050
9718112121
10310428712
1114a257760
1287b662b4
134c40c839
142d329dd6
151c3bdd27
hex1280c428

310428712 has 64 divisors (see below), whose sum is σ = 657901440. Its totient is φ = 136089600.

The previous prime is 310428691. The next prime is 310428719. The reversal of 310428712 is 217824013.

It is not an unprimeable number, because it can be changed into a prime (310428719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349533 + ... + 350419.

It is an arithmetic number, because the mean of its divisors is an integer number (10279710).

Almost surely, 2310428712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 310428712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328950720).

310428712 is an abundant number, since it is smaller than the sum of its proper divisors (347472728).

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

310428712 is a wasteful number, since it uses less digits than its factorization.

310428712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042 (or 1038 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 310428712 is about 17618.9872580691. The cubic root of 310428712 is about 677.1017885667.

The spelling of 310428712 in words is "three hundred ten million, four hundred twenty-eight thousand, seven hundred twelve".

Divisors: 1 2 4 8 11 22 41 44 82 88 97 164 194 328 388 451 776 887 902 1067 1774 1804 2134 3548 3608 3977 4268 7096 7954 8536 9757 15908 19514 31816 36367 39028 43747 72734 78056 86039 87494 145468 172078 174988 290936 344156 349976 400037 688312 800074 946429 1600148 1892858 3200296 3527599 3785716 7055198 7571432 14110396 28220792 38803589 77607178 155214356 310428712