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102912835 = 5193133461
BaseRepresentation
bin1100010001001…
…01001101000011
321011122111212111
412020211031003
5202321202320
614113440151
72356513264
oct610451503
9234574774
10102912835
1153100a33
122a570057
131842358c
14d94c96b
15907ca5a
hex6225343

102912835 has 16 divisors (see below), whose sum is σ = 130448160. Its totient is φ = 77725440.

The previous prime is 102912827. The next prime is 102912841. The reversal of 102912835 is 538219201.

It is not a de Polignac number, because 102912835 - 23 = 102912827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102912797 and 102912806.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28005 + ... + 31465.

It is an arithmetic number, because the mean of its divisors is an integer number (8153010).

Almost surely, 2102912835 is an apocalyptic number.

102912835 is a deficient number, since it is larger than the sum of its proper divisors (27535325).

102912835 is a wasteful number, since it uses less digits than its factorization.

102912835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 102912835 is about 10144.5963448528. The cubic root of 102912835 is about 468.6225476305.

The spelling of 102912835 in words is "one hundred two million, nine hundred twelve thousand, eight hundred thirty-five".

Divisors: 1 5 19 95 313 1565 3461 5947 17305 29735 65759 328795 1083293 5416465 20582567 102912835