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312339950 = 252131393457
BaseRepresentation
bin10010100111011…
…110110111101110
3210202201111212022
4102213132313232
51114424334300
650554310142
710511563046
oct2247366756
9722644768
10312339950
1115034269a
1288728352
134c92b750
142d6a6726
151c64a285
hex129dedee

312339950 has 48 divisors (see below), whose sum is σ = 630324240. Its totient is φ = 114462720.

The previous prime is 312339949. The next prime is 312339953. The reversal of 312339950 is 59933213.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 312339950.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312339953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88622 + ... + 92078.

It is an arithmetic number, because the mean of its divisors is an integer number (13131755).

Almost surely, 2312339950 is an apocalyptic number.

312339950 is an abundant number, since it is smaller than the sum of its proper divisors (317984290).

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

312339950 is a wasteful number, since it uses less digits than its factorization.

312339950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621 (or 3616 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 35.

The square root of 312339950 is about 17673.1420522781. The cubic root of 312339950 is about 678.4885330211.

The spelling of 312339950 in words is "three hundred twelve million, three hundred thirty-nine thousand, nine hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 139 278 325 650 695 1390 1807 3457 3475 3614 6914 6950 9035 17285 18070 34570 44941 45175 86425 89882 90350 172850 224705 449410 480523 961046 1123525 2247050 2402615 4805230 6246799 12013075 12493598 24026150 31233995 62467990 156169975 312339950