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19148142 = 2313317919
BaseRepresentation
bin100100100001…
…0110101101110
31100000211022110
41021002311232
514400220032
61522224450
7321520326
oct111026556
940024273
1019148142
11a899312
1264b5126
133c75780
142786286
151a337cc
hex1242d6e

19148142 has 32 divisors (see below), whose sum is σ = 42577920. Its totient is φ = 5700960.

The previous prime is 19148123. The next prime is 19148147. The reversal of 19148142 is 24184191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19148147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1542 + ... + 6377.

It is an arithmetic number, because the mean of its divisors is an integer number (1330560).

Almost surely, 219148142 is an apocalyptic number.

19148142 is an abundant number, since it is smaller than the sum of its proper divisors (23429778).

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

19148142 is a wasteful number, since it uses less digits than its factorization.

19148142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7968.

The product of its digits is 2304, while the sum is 30.

The square root of 19148142 is about 4375.8590013848. The cubic root of 19148142 is about 267.5318831185.

The spelling of 19148142 in words is "nineteen million, one hundred forty-eight thousand, one hundred forty-two".

Divisors: 1 2 3 6 13 26 31 39 62 78 93 186 403 806 1209 2418 7919 15838 23757 47514 102947 205894 245489 308841 490978 617682 736467 1472934 3191357 6382714 9574071 19148142