Search a number
-
+
131153040 = 2433560719
BaseRepresentation
bin1111101000100…
…11110010010000
3100010210021011000
413310103302100
5232033344130
621003022000
73151532244
oct764236220
9303707130
10131153040
116803a247
1237b0a900
1321230565
14135c0424
15b7aa260
hex7d13c90

131153040 has 80 divisors (see below), whose sum is σ = 451756800. Its totient is φ = 34973568.

The previous prime is 131153039. The next prime is 131153063. The reversal of 131153040 is 40351131.

131153040 is a `hidden beast` number, since 131 + 1 + 530 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1311530402 = 34402239802483200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28200 + ... + 32519.

It is an arithmetic number, because the mean of its divisors is an integer number (5646960).

Almost surely, 2131153040 is an apocalyptic number.

131153040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131153040 is an abundant number, since it is smaller than the sum of its proper divisors (320603760).

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

131153040 is a wasteful number, since it uses less digits than its factorization.

131153040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60741 (or 60729 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 131153040 is about 11452.2067742422. The cubic root of 131153040 is about 508.0730049873.

The spelling of 131153040 in words is "one hundred thirty-one million, one hundred fifty-three thousand, forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 90 108 120 135 144 180 216 240 270 360 432 540 720 1080 2160 60719 121438 182157 242876 303595 364314 485752 546471 607190 728628 910785 971504 1092942 1214380 1457256 1639413 1821570 2185884 2428760 2732355 2914512 3278826 3643140 4371768 4857520 5464710 6557652 7286280 8197065 8743536 10929420 13115304 14572560 16394130 21858840 26230608 32788260 43717680 65576520 131153040