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15305104340 = 2252837269741
BaseRepresentation
bin11100100000100000…
…10101101111010100
31110111122020212011022
432100100111233110
5222321101314330
611010413300312
71051163145311
oct162020255724
943448225138
1015305104340
116544372469
122b71794698
13159bb13276
14a52965d08
155e89d0ae5
hex390415bd4

15305104340 has 24 divisors (see below), whose sum is σ = 32152167432. Its totient is φ = 6119861120.

The previous prime is 15305104259. The next prime is 15305104349. The reversal of 15305104340 is 4340150351.

It can be written as a sum of positive squares in 4 ways, for example, as 9351364 + 15295752976 = 3058^2 + 123676^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15305104349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78131 + ... + 191610.

It is an arithmetic number, because the mean of its divisors is an integer number (1339673643).

Almost surely, 215305104340 is an apocalyptic number.

15305104340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15305104340 is an abundant number, since it is smaller than the sum of its proper divisors (16847063092).

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

15305104340 is a wasteful number, since it uses less digits than its factorization.

15305104340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272587 (or 272585 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 15305104340 its reverse (4340150351), we get a palindrome (19645254691).

The spelling of 15305104340 in words is "fifteen billion, three hundred five million, one hundred four thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 2837 5674 11348 14185 28370 56740 269741 539482 1078964 1348705 2697410 5394820 765255217 1530510434 3061020868 3826276085 7652552170 15305104340