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13130220120 = 2335127861563
BaseRepresentation
bin11000011101001111…
…10100001001011000
31020220001211021212220
430032213310021120
5203342314020440
610010522104040
7643244013063
oct141647641130
936801737786
1013130220120
115628737796
12266534b020
131313366724
148c7b858da
1551cac58d0
hex30e9f4258

13130220120 has 64 divisors (see below), whose sum is σ = 39700869120. Its totient is φ = 3473817984.

The previous prime is 13130220083. The next prime is 13130220121. The reversal of 13130220120 is 2102203131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13130220120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13130220121) 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, 415542 + ... + 446021.

It is an arithmetic number, because the mean of its divisors is an integer number (620326080).

Almost surely, 213130220120 is an apocalyptic number.

13130220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13130220120 is an abundant number, since it is smaller than the sum of its proper divisors (26570649000).

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

13130220120 is a wasteful number, since it uses less digits than its factorization.

13130220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861704 (or 861700 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 13130220120 its reverse (2102203131), we get a palindrome (15232423251).

The spelling of 13130220120 in words is "thirteen billion, one hundred thirty million, two hundred twenty thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 127 254 381 508 635 762 1016 1270 1524 1905 2540 3048 3810 5080 7620 15240 861563 1723126 2584689 3446252 4307815 5169378 6892504 8615630 10338756 12923445 17231260 20677512 25846890 34462520 51693780 103387560 109418501 218837002 328255503 437674004 547092505 656511006 875348008 1094185010 1313022012 1641277515 2188370020 2626044024 3282555030 4376740040 6565110060 13130220120