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13153847540 = 225657692377
BaseRepresentation
bin11000100000000011…
…11100100011110100
31020221201021200121112
430100001330203310
5203414341110130
610013124334152
7643651600511
oct142001744364
936851250545
1013153847540
115640005389
122671244358
131318219c52
148cad76308
1551ebe1495
hex31007c8f4

13153847540 has 12 divisors (see below), whose sum is σ = 27623079876. Its totient is φ = 5261539008.

The previous prime is 13153847537. The next prime is 13153847557. The reversal of 13153847540 is 4574835131.

It can be written as a sum of positive squares in 2 ways, for example, as 3296137744 + 9857709796 = 57412^2 + 99286^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328846169 + ... + 328846208.

It is an arithmetic number, because the mean of its divisors is an integer number (2301923323).

Almost surely, 213153847540 is an apocalyptic number.

13153847540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13153847540 is an abundant number, since it is smaller than the sum of its proper divisors (14469232336).

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

13153847540 is a wasteful number, since it uses less digits than its factorization.

13153847540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657692386 (or 657692384 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 13153847540 in words is "thirteen billion, one hundred fifty-three million, eight hundred forty-seven thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 657692377 1315384754 2630769508 3288461885 6576923770 13153847540