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117255830 = 25103311351
BaseRepresentation
bin1101111110100…
…10111010010110
322011122012202112
412333102322112
5220004141310
615345111022
72622441506
oct677227226
9264565675
10117255830
116020804a
1233328472
131b3a5b63
1411803a06
15a462705
hex6fd2e96

117255830 has 16 divisors (see below), whose sum is σ = 211283424. Its totient is φ = 46852800.

The previous prime is 117255793. The next prime is 117255841. The reversal of 117255830 is 38552711.

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 7 ways as a sum of consecutive naturals, for example, 4655 + ... + 16005.

It is an arithmetic number, because the mean of its divisors is an integer number (13205214).

Almost surely, 2117255830 is an apocalyptic number.

117255830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117255830 is a deficient number, since it is larger than the sum of its proper divisors (94027594).

117255830 is a wasteful number, since it uses less digits than its factorization.

117255830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12391.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 117255830 is about 10828.4731148948. The cubic root of 117255830 is about 489.4535488103.

The spelling of 117255830 in words is "one hundred seventeen million, two hundred fifty-five thousand, eight hundred thirty".

Divisors: 1 2 5 10 1033 2066 5165 10330 11351 22702 56755 113510 11725583 23451166 58627915 117255830