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12421200032 = 253112521371
BaseRepresentation
bin10111001000101110…
…00111100010100000
31012001122200100011122
423210113013202200
5200414311400112
65412313231412
7616544313113
oct134427074240
935048610148
1012421200032
1152a449747a
1224a7a02568
13122c4b9807
1485b94057a
154ca720872
hex2e45c78a0

12421200032 has 24 divisors (see below), whose sum is σ = 25243085952. Its totient is φ = 6010257600.

The previous prime is 12421200023. The next prime is 12421200083. The reversal of 12421200032 is 23000212421.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6259694 + ... + 6261677.

It is an arithmetic number, because the mean of its divisors is an integer number (1051795248).

Almost surely, 212421200032 is an apocalyptic number.

It is an amenable number.

12421200032 is an abundant number, since it is smaller than the sum of its proper divisors (12821885920).

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

12421200032 is a wasteful number, since it uses less digits than its factorization.

12421200032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12521412 (or 12521404 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12421200032 its reverse (23000212421), we get a palindrome (35421412453).

The spelling of 12421200032 in words is "twelve billion, four hundred twenty-one million, two hundred thousand, thirty-two".

Divisors: 1 2 4 8 16 31 32 62 124 248 496 992 12521371 25042742 50085484 100170968 200341936 388162501 400683872 776325002 1552650004 3105300008 6210600016 12421200032