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19052916 = 2231587743
BaseRepresentation
bin100100010101…
…1100101110100
31022211222200120
41020223211310
514334143131
61520211540
7320642601
oct110534564
938758616
1019052916
11a833813
126469bb0
133c4131c
14275d6a8
151a15496
hex122b974

19052916 has 12 divisors (see below), whose sum is σ = 44456832. Its totient is φ = 6350968.

The previous prime is 19052893. The next prime is 19052951. The reversal of 19052916 is 61925091.

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

It is a super-3 number, since 3×190529163 (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 793860 + ... + 793883.

It is an arithmetic number, because the mean of its divisors is an integer number (3704736).

Almost surely, 219052916 is an apocalyptic number.

It is an amenable number.

19052916 is an abundant number, since it is smaller than the sum of its proper divisors (25403916).

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

19052916 is a wasteful number, since it uses less digits than its factorization.

19052916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587750 (or 1587748 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 19052916 is about 4364.9646046675. The cubic root of 19052916 is about 267.0876565562.

The spelling of 19052916 in words is "nineteen million, fifty-two thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 12 1587743 3175486 4763229 6350972 9526458 19052916