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19935372 = 2231661281
BaseRepresentation
bin100110000001…
…1000010001100
31101111211012010
41030003002030
520100412442
61551141220
7331306422
oct114030214
941454163
1019935372
1110286816
126814810
13418cba2
14290d112
151b3bb9c
hex130308c

19935372 has 12 divisors (see below), whose sum is σ = 46515896. Its totient is φ = 6645120.

The previous prime is 19935371. The next prime is 19935397. The reversal of 19935372 is 27353991.

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

It is a self number, because there is not a number n which added to its sum of digits gives 19935372.

It is not an unprimeable number, because it can be changed into a prime (19935371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830629 + ... + 830652.

Almost surely, 219935372 is an apocalyptic number.

19935372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19935372 is an abundant number, since it is smaller than the sum of its proper divisors (26580524).

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

19935372 is a wasteful number, since it uses less digits than its factorization.

19935372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661288 (or 1661286 counting only the distinct ones).

The product of its digits is 51030, while the sum is 39.

The square root of 19935372 is about 4464.9044782615. The cubic root of 19935372 is about 271.1490671922.

The spelling of 19935372 in words is "nineteen million, nine hundred thirty-five thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 1661281 3322562 4983843 6645124 9967686 19935372