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56430144 = 26323132
BaseRepresentation
bin1101011101000…
…0111001000000
310221011221121100
43113100321000
5103421231034
65333254400
71253435241
oct327207100
9127157540
1056430144
1129942891
1216a94400
13b8ca124
1476cccc8
154e4a099
hex35d0e40

56430144 has 63 divisors (see below), whose sum is σ = 162265233. Its totient is φ = 18749952.

The previous prime is 56430103. The next prime is 56430149. The reversal of 56430144 is 44103465.

The square root of 56430144 is 7512.

It is a perfect power (a square), and thus also a powerful number.

56430144 is a `hidden beast` number, since 5 + 643 + 0 + 14 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 360000 + 56070144 = 600^2 + 7488^2 .

It is a super-2 number, since 2×564301442 = 6368722303721472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56430149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 180132 + ... + 180444.

Almost surely, 256430144 is an apocalyptic number.

56430144 is the 7512-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56430144

56430144 is an abundant number, since it is smaller than the sum of its proper divisors (105835089).

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

56430144 is an equidigital number, since it uses as much as digits as its factorization.

56430144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The cubic root of 56430144 is about 383.5633056519.

The spelling of 56430144 in words is "fifty-six million, four hundred thirty thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 144 192 288 313 576 626 939 1252 1878 2504 2817 3756 5008 5634 7512 10016 11268 15024 20032 22536 30048 45072 60096 90144 97969 180288 195938 293907 391876 587814 783752 881721 1175628 1567504 1763442 2351256 3135008 3526884 4702512 6270016 7053768 9405024 14107536 18810048 28215072 56430144