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115147690 = 25729131433
BaseRepresentation
bin1101101110100…
…00001110101010
322000200002221021
412313100032222
5213434211230
615232003054
72565511360
oct667201652
9260602837
10115147690
1159aa8189
123269048a
131ab18438
1411415630
15a197c7a
hex6dd03aa

115147690 has 64 divisors (see below), whose sum is σ = 247484160. Its totient is φ = 37739520.

The previous prime is 115147673. The next prime is 115147691. The reversal of 115147690 is 96741511.

It is a super-2 number, since 2×1151476902 = 26517981024672200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115147691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 265714 + ... + 266146.

It is an arithmetic number, because the mean of its divisors is an integer number (3866940).

Almost surely, 2115147690 is an apocalyptic number.

115147690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115147690 is an abundant number, since it is smaller than the sum of its proper divisors (132336470).

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

115147690 is a wasteful number, since it uses less digits than its factorization.

115147690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 115147690 is about 10730.6891670573. The cubic root of 115147690 is about 486.5025003507.

It can be divided in two parts, 1151 and 47690, that added together give a square (48841 = 2212).

The spelling of 115147690 in words is "one hundred fifteen million, one hundred forty-seven thousand, six hundred ninety".

Divisors: 1 2 5 7 10 14 29 35 58 70 131 145 203 262 290 406 433 655 866 917 1015 1310 1834 2030 2165 3031 3799 4330 4585 6062 7598 9170 12557 15155 18995 25114 26593 30310 37990 53186 56723 62785 87899 113446 125570 132965 175798 265930 283615 397061 439495 567230 794122 878990 1644967 1985305 3289934 3970610 8224835 11514769 16449670 23029538 57573845 115147690