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102455244 = 22322845979
BaseRepresentation
bin1100001101101…
…01011111001100
321010210021011200
412012311133030
5202212031434
614055545500
72352566223
oct606653714
9233707150
10102455244
1152919161
122a38b290
13182c3208
14d86dcba
158edc199
hex61b57cc

102455244 has 18 divisors (see below), whose sum is σ = 258984180. Its totient is φ = 34151736.

The previous prime is 102455219. The next prime is 102455273. The reversal of 102455244 is 442554201.

102455244 is a `hidden beast` number, since 102 + 4 + 552 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1422954 + ... + 1423025.

It is an arithmetic number, because the mean of its divisors is an integer number (14388010).

Almost surely, 2102455244 is an apocalyptic number.

It is an amenable number.

102455244 is an abundant number, since it is smaller than the sum of its proper divisors (156528936).

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

102455244 is a wasteful number, since it uses less digits than its factorization.

102455244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845989 (or 2845984 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 102455244 is about 10122.0177830312. The cubic root of 102455244 is about 467.9269555077.

It can be divided in two parts, 1024552 and 44, that added together give a triangular number (1024596 = T1431).

The spelling of 102455244 in words is "one hundred two million, four hundred fifty-five thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 36 2845979 5691958 8537937 11383916 17075874 25613811 34151748 51227622 102455244