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56453144142 = 2312774085491
BaseRepresentation
bin110100100100110111…
…101001111001001110
312101201022112212012110
4310210313221321032
51411104001103032
641533442444450
74035650544033
oct644467517116
9171638485173
1056453144142
1121a3a36782a
12ab36063726
135428996605
142a377b938a
15170618c7cc
hexd24de9e4e

56453144142 has 16 divisors (see below), whose sum is σ = 113795315712. Its totient is φ = 18669543480.

The previous prime is 56453144117. The next prime is 56453144149. The reversal of 56453144142 is 24144135465.

It is a self number, because there is not a number n which added to its sum of digits gives 56453144142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56453144149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37041984 + ... + 37043507.

It is an arithmetic number, because the mean of its divisors is an integer number (7112207232).

Almost surely, 256453144142 is an apocalyptic number.

56453144142 is an abundant number, since it is smaller than the sum of its proper divisors (57342171570).

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

56453144142 is a wasteful number, since it uses less digits than its factorization.

56453144142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74085623.

The product of its digits is 230400, while the sum is 39.

The spelling of 56453144142 in words is "fifty-six billion, four hundred fifty-three million, one hundred forty-four thousand, one hundred forty-two".

Divisors: 1 2 3 6 127 254 381 762 74085491 148170982 222256473 444512946 9408857357 18817714714 28226572071 56453144142