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19080872 = 2331471637
BaseRepresentation
bin100100011001…
…0011010101000
31022220102000222
41020302122220
514341041442
61520545212
7321120236
oct110623250
938812028
1019080872
11a852818
126482208
133c50c75
142769956
151a1d8d2
hex12326a8

19080872 has 32 divisors (see below), whose sum is σ = 37739520. Its totient is φ = 9030720.

The previous prime is 19080871. The next prime is 19080881. The reversal of 19080872 is 27808091.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (19080871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10838 + ... + 12474.

It is an arithmetic number, because the mean of its divisors is an integer number (1179360).

Almost surely, 219080872 is an apocalyptic number.

It is an amenable number.

19080872 is a deficient number, since it is larger than the sum of its proper divisors (18658648).

19080872 is a wasteful number, since it uses less digits than its factorization.

19080872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721 (or 1717 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 19080872 is about 4368.1657477710. The cubic root of 19080872 is about 267.2182236845.

The spelling of 19080872 in words is "nineteen million, eighty thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 31 47 62 94 124 188 248 376 1457 1637 2914 3274 5828 6548 11656 13096 50747 76939 101494 153878 202988 307756 405976 615512 2385109 4770218 9540436 19080872