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13120011330 = 235983944449
BaseRepresentation
bin11000011100000001…
…10111110001000010
31020212100121122001120
430032000313301002
5203332210330310
610005515213110
7643061153616
oct141600676102
936770548046
1013120011330
1156229a4778
122661a47196
131311200b1a
148c6689346
1551bc5ab70
hex30e037c42

13120011330 has 32 divisors (see below), whose sum is σ = 31491936000. Its totient is φ = 3498235392.

The previous prime is 13120011323. The next prime is 13120011361. The reversal of 13120011330 is 3311002131.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272946 + ... + 317394.

It is an arithmetic number, because the mean of its divisors is an integer number (984123000).

Almost surely, 213120011330 is an apocalyptic number.

13120011330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13120011330 is an abundant number, since it is smaller than the sum of its proper divisors (18371924670).

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

13120011330 is a wasteful number, since it uses less digits than its factorization.

13120011330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54298.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 13120011330 its reverse (3311002131), we get a palindrome (16431013461).

The spelling of 13120011330 in words is "thirteen billion, one hundred twenty million, eleven thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 9839 19678 29517 44449 49195 59034 88898 98390 133347 147585 222245 266694 295170 444490 666735 1333470 437333711 874667422 1312001133 2186668555 2624002266 4373337110 6560005665 13120011330