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15312441140 = 2254728975623
BaseRepresentation
bin11100100001011000…
…10100111100110100
31110112011001121100122
432100230110330310
5222324441104030
611011234431112
71051312413353
oct162054247464
943464047318
1015312441140
116548523737
122b74132498
1315a04b1879
14a5391599a
155e947e8e5
hex390b14f34

15312441140 has 48 divisors (see below), whose sum is σ = 32857477632. Its totient is φ = 5991522816.

The previous prime is 15312441077. The next prime is 15312441149. The reversal of 15312441140 is 4114421351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15312441149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2720369 + ... + 2725991.

It is an arithmetic number, because the mean of its divisors is an integer number (684530784).

Almost surely, 215312441140 is an apocalyptic number.

15312441140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15312441140 is an abundant number, since it is smaller than the sum of its proper divisors (17545036492).

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

15312441140 is a wasteful number, since it uses less digits than its factorization.

15312441140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8576 (or 8574 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 15312441140 its reverse (4114421351), we get a palindrome (19426862491).

The spelling of 15312441140 in words is "fifteen billion, three hundred twelve million, four hundred forty-one thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 47 94 188 235 470 940 2897 5623 5794 11246 11588 14485 22492 28115 28970 56230 57940 112460 136159 264281 272318 528562 544636 680795 1057124 1321405 1361590 2642810 2723180 5285620 16289831 32579662 65159324 81449155 162898310 325796620 765622057 1531244114 3062488228 3828110285 7656220570 15312441140