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12203473144 = 233149207553
BaseRepresentation
bin10110101110110001…
…00011100011111000
31011111110222200000211
423113120203203320
5144443042120034
65334534440504
7611261544622
oct132730434370
934443880024
1012203473144
1151a25a6aa5
122446b03134
1311c6366935
1483aa65c12
154b6563d64
hex2d76238f8

12203473144 has 16 divisors (see below), whose sum is σ = 23619625920. Its totient is φ = 5904906240.

The previous prime is 12203473127. The next prime is 12203473187. The reversal of 12203473144 is 44137430221.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

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, 24603529 + ... + 24604024.

It is an arithmetic number, because the mean of its divisors is an integer number (1476226620).

Almost surely, 212203473144 is an apocalyptic number.

It is an amenable number.

12203473144 is a deficient number, since it is larger than the sum of its proper divisors (11416152776).

12203473144 is a wasteful number, since it uses less digits than its factorization.

12203473144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49207590 (or 49207586 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The spelling of 12203473144 in words is "twelve billion, two hundred three million, four hundred seventy-three thousand, one hundred forty-four".

Divisors: 1 2 4 8 31 62 124 248 49207553 98415106 196830212 393660424 1525434143 3050868286 6101736572 12203473144