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19132940 = 2251635869
BaseRepresentation
bin100100011111…
…1001000001100
31100000001110102
41020333020030
514344223230
61522030232
7321425111
oct110771014
940001412
1019132940
11a888952
1264a8378
133c6b888
142780908
151a2e045
hex123f20c

19132940 has 24 divisors (see below), whose sum is σ = 40432560. Its totient is φ = 7604928.

The previous prime is 19132903. The next prime is 19132951. The reversal of 19132940 is 4923191.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326 + ... + 6194.

It is an arithmetic number, because the mean of its divisors is an integer number (1684690).

Almost surely, 219132940 is an apocalyptic number.

19132940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19132940 is an abundant number, since it is smaller than the sum of its proper divisors (21299620).

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

19132940 is a wasteful number, since it uses less digits than its factorization.

19132940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6041 (or 6039 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 19132940 is about 4374.1216261096. The cubic root of 19132940 is about 267.4610651692.

The spelling of 19132940 in words is "nineteen million, one hundred thirty-two thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 163 326 652 815 1630 3260 5869 11738 23476 29345 58690 117380 956647 1913294 3826588 4783235 9566470 19132940