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102423942 = 23219329483
BaseRepresentation
bin1100001101011…
…01110110000110
321010201200020100
412012231312012
5202210031232
614055144530
72352406035
oct606556606
9233650210
10102423942
11528a7695
122a375146
13182b1baa
14d86271c
158ed2c7c
hex61add86

102423942 has 24 divisors (see below), whose sum is σ = 223075944. Its totient is φ = 33963264.

The previous prime is 102423917. The next prime is 102423943. The reversal of 102423942 is 249324201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102423943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11268 + ... + 18215.

It is an arithmetic number, because the mean of its divisors is an integer number (9294831).

Almost surely, 2102423942 is an apocalyptic number.

102423942 is an abundant number, since it is smaller than the sum of its proper divisors (120652002).

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

102423942 is a wasteful number, since it uses less digits than its factorization.

102423942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29684 (or 29681 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 102423942 is about 10120.4714317071. The cubic root of 102423942 is about 467.8792971648.

The spelling of 102423942 in words is "one hundred two million, four hundred twenty-three thousand, nine hundred forty-two".

Divisors: 1 2 3 6 9 18 193 386 579 1158 1737 3474 29483 58966 88449 176898 265347 530694 5690219 11380438 17070657 34141314 51211971 102423942