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102648830 = 25194113177
BaseRepresentation
bin1100001111001…
…00101111111110
321011011002201112
412013210233332
5202234230310
614104042022
72354333504
oct607445776
9234132645
10102648830
1152a40649
122a463312
131836036b
14d8c0674
159029705
hex61e4bfe

102648830 has 32 divisors (see below), whose sum is σ = 199251360. Its totient is φ = 37946880.

The previous prime is 102648829. The next prime is 102648851. The reversal of 102648830 is 38846201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1202 + ... + 14378.

It is an arithmetic number, because the mean of its divisors is an integer number (6226605).

Almost surely, 2102648830 is an apocalyptic number.

102648830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102648830 is a deficient number, since it is larger than the sum of its proper divisors (96602530).

102648830 is a wasteful number, since it uses less digits than its factorization.

102648830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13244.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 102648830 is about 10131.5758892682. The cubic root of 102648830 is about 468.2214812340.

The spelling of 102648830 in words is "one hundred two million, six hundred forty-eight thousand, eight hundred thirty".

Divisors: 1 2 5 10 19 38 41 82 95 190 205 410 779 1558 3895 7790 13177 26354 65885 131770 250363 500726 540257 1080514 1251815 2503630 2701285 5402570 10264883 20529766 51324415 102648830