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13102042780 = 225655102139
BaseRepresentation
bin11000011001111000…
…10100111010011100
31020211002210201211201
430030330110322130
5203313110332110
610004034125244
7642452345311
oct141474247234
936732721751
1013102042780
115613841732
122657a20824
13130a57c248
148c412cd08
1551a3abb3a
hex30cf14e9c

13102042780 has 12 divisors (see below), whose sum is σ = 27514289880. Its totient is φ = 5240817104.

The previous prime is 13102042729. The next prime is 13102042799. The reversal of 13102042780 is 8724020131.

13102042780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327551050 + ... + 327551089.

It is an arithmetic number, because the mean of its divisors is an integer number (2292857490).

Almost surely, 213102042780 is an apocalyptic number.

13102042780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13102042780 is an abundant number, since it is smaller than the sum of its proper divisors (14412247100).

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

13102042780 is a wasteful number, since it uses less digits than its factorization.

13102042780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655102148 (or 655102146 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The spelling of 13102042780 in words is "thirteen billion, one hundred two million, forty-two thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 655102139 1310204278 2620408556 3275510695 6551021390 13102042780