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312364420 = 22579197699
BaseRepresentation
bin10010100111100…
…100110110000100
3210202202202102121
4102213210312010
51114431130140
650555015324
710512024304
oct2247446604
9722682377
10312364420
1115035a015
128873a544
134c939924
142d6b1604
151c65264a
hex129e4d84

312364420 has 24 divisors (see below), whose sum is σ = 664272000. Its totient is φ = 123363552.

The previous prime is 312364411. The next prime is 312364421. The reversal of 312364420 is 24463213.

It is not an unprimeable number, because it can be changed into a prime (312364421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97270 + ... + 100429.

It is an arithmetic number, because the mean of its divisors is an integer number (27678000).

Almost surely, 2312364420 is an apocalyptic number.

It is an amenable number.

312364420 is an abundant number, since it is smaller than the sum of its proper divisors (351907580).

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

312364420 is a wasteful number, since it uses less digits than its factorization.

312364420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197787 (or 197785 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 312364420 is about 17673.8343321420. The cubic root of 312364420 is about 678.5062510885.

The spelling of 312364420 in words is "three hundred twelve million, three hundred sixty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 79 158 316 395 790 1580 197699 395398 790796 988495 1976990 3953980 15618221 31236442 62472884 78091105 156182210 312364420