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102877930 = 2543239251
BaseRepresentation
bin1100010000111…
…00101011101010
321011120201222201
412020130223222
5202314043210
614113010414
72356306441
oct610345352
9234521881
10102877930
1153087791
122a553a0a
131841071c
14d93dd58
15907253a
hex621caea

102877930 has 16 divisors (see below), whose sum is σ = 189487584. Its totient is φ = 40194000.

The previous prime is 102877927. The next prime is 102877981. The reversal of 102877930 is 39778201.

It is a self number, because there is not a number n which added to its sum of digits gives 102877930.

It is an unprimeable number.

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, 119196 + ... + 120055.

It is an arithmetic number, because the mean of its divisors is an integer number (11842974).

Almost surely, 2102877930 is an apocalyptic number.

102877930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102877930 is a deficient number, since it is larger than the sum of its proper divisors (86609654).

102877930 is a wasteful number, since it uses less digits than its factorization.

102877930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239301.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 102877930 is about 10142.8758249325. The cubic root of 102877930 is about 468.5695606548.

The spelling of 102877930 in words is "one hundred two million, eight hundred seventy-seven thousand, nine hundred thirty".

Divisors: 1 2 5 10 43 86 215 430 239251 478502 1196255 2392510 10287793 20575586 51438965 102877930