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19064972 = 2273109599
BaseRepresentation
bin100100010111…
…0100010001100
31022212121020002
41020232202030
514340034342
61520343432
7321023003
oct110564214
938777202
1019064972
11a841883
126474b78
133c46964
142763c3a
151a18d32
hex122e88c

19064972 has 24 divisors (see below), whose sum is σ = 34188000. Its totient is φ = 9300096.

The previous prime is 19064971. The next prime is 19064993. The reversal of 19064972 is 27946091.

It is not an unprimeable number, because it can be changed into a prime (19064971) 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, 31529 + ... + 32127.

It is an arithmetic number, because the mean of its divisors is an integer number (1424500).

Almost surely, 219064972 is an apocalyptic number.

It is an amenable number.

19064972 is a deficient number, since it is larger than the sum of its proper divisors (15123028).

19064972 is a wasteful number, since it uses less digits than its factorization.

19064972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 19064972 is about 4366.3453825826. The cubic root of 19064972 is about 267.1439791660.

The spelling of 19064972 in words is "nineteen million, sixty-four thousand, nine hundred seventy-two".

Divisors: 1 2 4 73 109 146 218 292 436 599 1198 2396 7957 15914 31828 43727 65291 87454 130582 174908 261164 4766243 9532486 19064972