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12038892520 = 235439168543
BaseRepresentation
bin10110011011001001…
…01110101111101000
31011002000022002212011
423031210232233220
5144123424030040
65310335125304
7604222620004
oct131544565750
934060262764
1012038892520
115118706156
1223bb973834
13119b231255
14822c63704
154a6da43ea
hex2cd92ebe8

12038892520 has 32 divisors (see below), whose sum is σ = 27094072320. Its totient is φ = 4814390080.

The previous prime is 12038892497. The next prime is 12038892571. The reversal of 12038892520 is 2529883021.

It is a super-2 number, since 2×120388925202 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141369 + ... + 209911.

It is an arithmetic number, because the mean of its divisors is an integer number (846689760).

Almost surely, 212038892520 is an apocalyptic number.

12038892520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12038892520 is an abundant number, since it is smaller than the sum of its proper divisors (15055179800).

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

12038892520 is a wasteful number, since it uses less digits than its factorization.

12038892520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72945 (or 72941 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 12038892520 in words is "twelve billion, thirty-eight million, eight hundred ninety-two thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 4391 8782 17564 21955 35128 43910 68543 87820 137086 175640 274172 342715 548344 685430 1370860 2741720 300972313 601944626 1203889252 1504861565 2407778504 3009723130 6019446260 12038892520