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144745056 = 253455843
BaseRepresentation
bin10001010000010…
…10001001100000
3101002100210220000
420220022021200
5244023320211
622210220000
73405212151
oct1050121140
9332323800
10144745056
1174783115
1240584600
1323cac081
141531b928
15ca92656
hex8a0a260

144745056 has 60 divisors (see below), whose sum is σ = 425698812. Its totient is φ = 48247488.

The previous prime is 144745039. The next prime is 144745099. The reversal of 144745056 is 650547441.

144745056 is a `hidden beast` number, since 144 + 7 + 4 + 505 + 6 = 666.

It is a super-2 number, since 2×1447450562 = 41902262472886272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 144745056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 25330 + ... + 30513.

Almost surely, 2144745056 is an apocalyptic number.

144745056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

144745056 is an abundant number, since it is smaller than the sum of its proper divisors (280953756).

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

144745056 is an equidigital number, since it uses as much as digits as its factorization.

144745056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55865 (or 55848 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 144745056 is about 12031.0039481333. The cubic root of 144745056 is about 525.0507053067.

The spelling of 144745056 in words is "one hundred forty-four million, seven hundred forty-five thousand, fifty-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 81 96 108 144 162 216 288 324 432 648 864 1296 2592 55843 111686 167529 223372 335058 446744 502587 670116 893488 1005174 1340232 1507761 1786976 2010348 2680464 3015522 4020696 4523283 5360928 6031044 8041392 9046566 12062088 16082784 18093132 24124176 36186264 48248352 72372528 144745056