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312475628 = 221372232557
BaseRepresentation
bin10010100111111…
…111111111101100
3210202222101222102
4102213333333230
51114443210003
651001234232
710512666443
oct2247777754
9722871872
10312475628
11150425623
1288792978
134c97842a
142d6ddd5a
151c675588
hex129fffec

312475628 has 24 divisors (see below), whose sum is σ = 553510272. Its totient is φ = 154341504.

The previous prime is 312475627. The next prime is 312475643. The reversal of 312475628 is 826574213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 312475591 and 312475600.

It is not an unprimeable number, because it can be changed into a prime (312475621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120926 + ... + 123482.

It is an arithmetic number, because the mean of its divisors is an integer number (23062928).

Almost surely, 2312475628 is an apocalyptic number.

It is an amenable number.

312475628 is a deficient number, since it is larger than the sum of its proper divisors (241034644).

312475628 is a wasteful number, since it uses less digits than its factorization.

312475628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921 (or 2919 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 312475628 is about 17676.9801719638. The cubic root of 312475628 is about 678.5867621471.

The spelling of 312475628 in words is "three hundred twelve million, four hundred seventy-five thousand, six hundred twenty-eight".

Divisors: 1 2 4 137 223 274 446 548 892 2557 5114 10228 30551 61102 122204 350309 570211 700618 1140422 1401236 2280844 78118907 156237814 312475628