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2315983872 = 21031939679
BaseRepresentation
bin1000101000001011…
…0001110000000000
312222101221011121110
42022002301300000
514220342440442
61021451323320
7111251352366
oct21202616000
95871834543
102315983872
11a89348a64
12547750540
132aba80577
1417d82d636
15d84cc69c
hex8a0b1c00

2315983872 has 88 divisors (see below), whose sum is σ = 6497996800. Its totient is φ = 731344896.

The previous prime is 2315983849. The next prime is 2315983903. The reversal of 2315983872 is 2783895132.

It is a happy number.

It is a super-2 number, since 2×23159838722 = 10727562590728224768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38529 + ... + 78207.

Almost surely, 22315983872 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 2315983872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3248998400).

2315983872 is an abundant number, since it is smaller than the sum of its proper divisors (4182012928).

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

2315983872 is a wasteful number, since it uses less digits than its factorization.

2315983872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39721 (or 39703 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 2315983872 is about 48124.6700975705. The cubic root of 2315983872 is about 1323.0568640079.

The spelling of 2315983872 in words is "two billion, three hundred fifteen million, nine hundred eighty-three thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 19 24 32 38 48 57 64 76 96 114 128 152 192 228 256 304 384 456 512 608 768 912 1024 1216 1536 1824 2432 3072 3648 4864 7296 9728 14592 19456 29184 39679 58368 79358 119037 158716 238074 317432 476148 634864 753901 952296 1269728 1507802 1904592 2261703 2539456 3015604 3809184 4523406 5078912 6031208 7618368 9046812 10157824 12062416 15236736 18093624 20315648 24124832 30473472 36187248 40631296 48249664 60946944 72374496 96499328 121893888 144748992 192998656 289497984 385997312 578995968 771994624 1157991936 2315983872