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12224456780 = 2251673660017
BaseRepresentation
bin10110110001010001…
…00110100001001100
31011112221110202011112
423120220212201030
5200013430104110
65341004311152
7611635111454
oct133050464114
934487422145
1012224456780
115203429348
122451b424b8
1311ca8029a3
1483d768d64
154b830b405
hex2d8a2684c

12224456780 has 24 divisors (see below), whose sum is σ = 25825087008. Its totient is φ = 4860501248.

The previous prime is 12224456779. The next prime is 12224456809. The reversal of 12224456780 is 8765442221.

It is a happy number.

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, 1826669 + ... + 1833348.

It is an arithmetic number, because the mean of its divisors is an integer number (1076045292).

Almost surely, 212224456780 is an apocalyptic number.

12224456780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12224456780 is an abundant number, since it is smaller than the sum of its proper divisors (13600630228).

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

12224456780 is a wasteful number, since it uses less digits than its factorization.

12224456780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3660193 (or 3660191 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 41.

The spelling of 12224456780 in words is "twelve billion, two hundred twenty-four million, four hundred fifty-six thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 167 334 668 835 1670 3340 3660017 7320034 14640068 18300085 36600170 73200340 611222839 1222445678 2444891356 3056114195 6112228390 12224456780