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12153938120 = 235319801563
BaseRepresentation
bin10110101000110111…
…00110000011001000
31011101000210000202022
423110123212003020
5144342402004440
65330005024012
7610120524632
oct132433460310
934330700668
1012153938120
115177643665
1224323b5008
1311b901207c
1483424da52
154b202bcb5
hex2d46e60c8

12153938120 has 32 divisors (see below), whose sum is σ = 28228504320. Its totient is φ = 4704749760.

The previous prime is 12153938099. The next prime is 12153938131. The reversal of 12153938120 is 2183935121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4899542 + ... + 4902021.

It is an arithmetic number, because the mean of its divisors is an integer number (882140760).

Almost surely, 212153938120 is an apocalyptic number.

12153938120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12153938120 is an abundant number, since it is smaller than the sum of its proper divisors (16074566200).

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

12153938120 is a wasteful number, since it uses less digits than its factorization.

12153938120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9801605 (or 9801601 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 12153938120 in words is "twelve billion, one hundred fifty-three million, nine hundred thirty-eight thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 248 310 620 1240 9801563 19603126 39206252 49007815 78412504 98015630 196031260 303848453 392062520 607696906 1215393812 1519242265 2430787624 3038484530 6076969060 12153938120