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19072056 = 233794669
BaseRepresentation
bin100100011000…
…0010000111000
31022212221221110
41020300100320
514340301211
61520440320
7321052443
oct110602070
938787843
1019072056
11a847133
1264790a0
133c49c53
14276665a
151a1aea6
hex1230438

19072056 has 16 divisors (see below), whose sum is σ = 47680200. Its totient is φ = 6357344.

The previous prime is 19072049. The next prime is 19072061. The reversal of 19072056 is 65027091.

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, 397311 + ... + 397358.

Almost surely, 219072056 is an apocalyptic number.

It is an amenable number.

19072056 is an abundant number, since it is smaller than the sum of its proper divisors (28608144).

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

19072056 is a wasteful number, since it uses less digits than its factorization.

19072056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794678 (or 794674 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 19072056 is about 4367.1565119652. The cubic root of 19072056 is about 267.1770627639.

The spelling of 19072056 in words is "nineteen million, seventy-two thousand, fifty-six".

Divisors: 1 2 3 4 6 8 12 24 794669 1589338 2384007 3178676 4768014 6357352 9536028 19072056