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56144552461 = 173479517639
BaseRepresentation
bin110100010010011110…
…011110001000001101
312100220210212202222221
4310102132132020031
51404441001134321
641443100335341
74025212551604
oct642236361015
9170823782887
1056144552461
11218a1155288
12aa6a844551
1353a9a7ac9a
142a0880aa3b
1516d9032e41
hexd1279e20d

56144552461 has 8 divisors (see below), whose sum is σ = 59618496960. Its totient is φ = 52689643968.

The previous prime is 56144552459. The next prime is 56144552539. The reversal of 56144552461 is 16425544165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56144552461 - 21 = 56144552459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56184552461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4752921 + ... + 4764718.

It is an arithmetic number, because the mean of its divisors is an integer number (7452312120).

Almost surely, 256144552461 is an apocalyptic number.

It is an amenable number.

56144552461 is a deficient number, since it is larger than the sum of its proper divisors (3473944499).

56144552461 is a wasteful number, since it uses less digits than its factorization.

56144552461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9518003.

The product of its digits is 576000, while the sum is 43.

The spelling of 56144552461 in words is "fifty-six billion, one hundred forty-four million, five hundred fifty-two thousand, four hundred sixty-one".

Divisors: 1 17 347 5899 9517639 161799863 3302620733 56144552461