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2315477740 = 225293992203
BaseRepresentation
bin1000101000000011…
…0110001011101100
312222100222110022211
42022000312023230
514220230241430
61021432420204
7111244143652
oct21200661354
95870873284
102315477740
11a89032774
12547547664
132ab934094
1417d73add2
15d842c72a
hex8a0362ec

2315477740 has 24 divisors (see below), whose sum is σ = 5030177040. Its totient is φ = 894253248.

The previous prime is 2315477719. The next prime is 2315477783. The reversal of 2315477740 is 477745132.

It is a super-2 number, since 2×23154777402 = 10722874328871015200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2315477693 and 2315477702.

It is an unprimeable number.

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, 1995522 + ... + 1996681.

It is an arithmetic number, because the mean of its divisors is an integer number (209590710).

Almost surely, 22315477740 is an apocalyptic number.

2315477740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2315477740 is an abundant number, since it is smaller than the sum of its proper divisors (2714699300).

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

2315477740 is a wasteful number, since it uses less digits than its factorization.

2315477740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992241 (or 3992239 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 40.

The square root of 2315477740 is about 48119.4112599063. The cubic root of 2315477740 is about 1322.9604772970.

The spelling of 2315477740 in words is "two billion, three hundred fifteen million, four hundred seventy-seven thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 3992203 7984406 15968812 19961015 39922030 79844060 115773887 231547774 463095548 578869435 1157738870 2315477740