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19142952 = 2331746919
BaseRepresentation
bin100100100000…
…1100100101000
31100000120012020
41021001210220
514400033302
61522144440
7321466233
oct111014450
940016166
1019142952
11a895424
1264b2120
133c732ba
14278441a
151a31ebc
hex1241928

19142952 has 32 divisors (see below), whose sum is σ = 50673600. Its totient is φ = 6005504.

The previous prime is 19142947. The next prime is 19142953. The reversal of 19142952 is 25924191.

It is a super-2 number, since 2×191429522 = 732905222548608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19142953) 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, 23052 + ... + 23867.

It is an arithmetic number, because the mean of its divisors is an integer number (1583550).

Almost surely, 219142952 is an apocalyptic number.

19142952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19142952 is an abundant number, since it is smaller than the sum of its proper divisors (31530648).

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

19142952 is a wasteful number, since it uses less digits than its factorization.

19142952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46945 (or 46941 counting only the distinct ones).

The product of its digits is 6480, while the sum is 33.

The square root of 19142952 is about 4375.2659347747. The cubic root of 19142952 is about 267.5077099126.

The spelling of 19142952 in words is "nineteen million, one hundred forty-two thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 46919 93838 140757 187676 281514 375352 563028 797623 1126056 1595246 2392869 3190492 4785738 6380984 9571476 19142952