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57630011806 = 228815005903
BaseRepresentation
bin110101101011000001…
…000011000110011110
312111202100000221010201
4311223001003012132
51421011240334211
642250323054114
74110061006063
oct655301030636
9174670027121
1057630011806
1122493703934
12b20421133a
13558574ba03
142b09c06c6a
1517746590c1
hexd6b04319e

57630011806 has 4 divisors (see below), whose sum is σ = 86445017712. Its totient is φ = 28815005902.

The previous prime is 57630011773. The next prime is 57630011821. The reversal of 57630011806 is 60811003675.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 14407502950 + ... + 14407502953.

It is an arithmetic number, because the mean of its divisors is an integer number (21611254428).

Almost surely, 257630011806 is an apocalyptic number.

57630011806 is a deficient number, since it is larger than the sum of its proper divisors (28815005906).

57630011806 is a wasteful number, since it uses less digits than its factorization.

57630011806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28815005905.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 57630011806 in words is "fifty-seven billion, six hundred thirty million, eleven thousand, eight hundred six".

Divisors: 1 2 28815005903 57630011806