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102942942 = 2359928643
BaseRepresentation
bin1100010001011…
…00100011011110
321011201001011120
412020230203132
5202323133232
614114231410
72360000124
oct610544336
9234631146
10102942942
1153121613
122a585566
13184341ab
14d959914
15908692c
hex622c8de

102942942 has 16 divisors (see below), whose sum is σ = 206236800. Its totient is φ = 34255832.

The previous prime is 102942901. The next prime is 102942943. The reversal of 102942942 is 249249201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102942943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10728 + ... + 17915.

It is an arithmetic number, because the mean of its divisors is an integer number (12889800).

Almost surely, 2102942942 is an apocalyptic number.

102942942 is an abundant number, since it is smaller than the sum of its proper divisors (103293858).

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

102942942 is a wasteful number, since it uses less digits than its factorization.

102942942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29247.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 102942942 is about 10146.0801297841. The cubic root of 102942942 is about 468.6682414562.

The spelling of 102942942 in words is "one hundred two million, nine hundred forty-two thousand, nine hundred forty-two".

Divisors: 1 2 3 6 599 1198 1797 3594 28643 57286 85929 171858 17157157 34314314 51471471 102942942