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13060045520 = 245163250569
BaseRepresentation
bin11000010100111000…
…00111101011010000
31020201011210001102122
430022130013223100
5203221332424040
65555534033412
7641432361314
oct141234075320
936634701378
1013060045520
1155a2067555
122645948868
1313019665b2
148bc719b44
155168631b5
hex30a707ad0

13060045520 has 20 divisors (see below), whose sum is σ = 30364606020. Its totient is φ = 5224018176.

The previous prime is 13060045501. The next prime is 13060045529. The reversal of 13060045520 is 2554006031.

It can be written as a sum of positive squares in 2 ways, for example, as 5608212544 + 7451832976 = 74888^2 + 86324^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 13060045520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13060045529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81625205 + ... + 81625364.

It is an arithmetic number, because the mean of its divisors is an integer number (1518230301).

Almost surely, 213060045520 is an apocalyptic number.

13060045520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13060045520 is an abundant number, since it is smaller than the sum of its proper divisors (17304560500).

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

13060045520 is a wasteful number, since it uses less digits than its factorization.

13060045520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163250582 (or 163250576 counting only the distinct ones).

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

The spelling of 13060045520 in words is "thirteen billion, sixty million, forty-five thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 163250569 326501138 653002276 816252845 1306004552 1632505690 2612009104 3265011380 6530022760 13060045520