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19441907124 = 2231620158927
BaseRepresentation
bin10010000110110100…
…111111010110110100
31212011221101012202020
4102012310333112310
5304304112011444
612533111313140
71255534324653
oct220664772664
955157335666
1019441907124
1182774a4642
12392707b7b0
131aaab92973
14d2612b19a
1578bc7a119
hex486d3f5b4

19441907124 has 12 divisors (see below), whose sum is σ = 45364449984. Its totient is φ = 6480635704.

The previous prime is 19441907099. The next prime is 19441907143. The reversal of 19441907124 is 42170914491.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810079452 + ... + 810079475.

It is an arithmetic number, because the mean of its divisors is an integer number (3780370832).

Almost surely, 219441907124 is an apocalyptic number.

It is an amenable number.

19441907124 is an abundant number, since it is smaller than the sum of its proper divisors (25922542860).

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

19441907124 is a wasteful number, since it uses less digits than its factorization.

19441907124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620158934 (or 1620158932 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 19441907124 in words is "nineteen billion, four hundred forty-one million, nine hundred seven thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 1620158927 3240317854 4860476781 6480635708 9720953562 19441907124