Search a number
-
+
136988999190 = 232512323123517
BaseRepresentation
bin111111110010100101…
…1100011111000010110
3111002120222222012010200
41333211023203320112
54221023140433230
6142533141401330
712616500165201
oct1774513437026
9432528865120
10136988999190
115310779a71a
1222671409246
13cbc1b28504
1468b77a0938
15386b708160
hex1fe52e3e16

136988999190 has 48 divisors (see below), whose sum is σ = 356203184688. Its totient is φ = 36527139648.

The previous prime is 136988999183. The next prime is 136988999201. The reversal of 136988999190 is 91999889631.

136988999190 is a `hidden beast` number, since 1 + 369 + 8 + 8 + 99 + 91 + 90 = 666.

It is a super-2 number, since 2×1369889991902 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1047312 + ... + 1170828.

It is an arithmetic number, because the mean of its divisors is an integer number (7420899681).

Almost surely, 2136988999190 is an apocalyptic number.

136988999190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136988999190 is an abundant number, since it is smaller than the sum of its proper divisors (219214185498).

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

136988999190 is a wasteful number, since it uses less digits than its factorization.

136988999190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135853 (or 135850 counting only the distinct ones).

The product of its (nonzero) digits is 68024448, while the sum is 72.

The spelling of 136988999190 in words is "one hundred thirty-six billion, nine hundred eighty-eight million, nine hundred ninety-nine thousand, one hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 12323 24646 36969 61615 73938 110907 123230 123517 184845 221814 247034 369690 370551 554535 617585 741102 1109070 1111653 1235170 1852755 2223306 3705510 5558265 11116530 1522099991 3044199982 4566299973 7610499955 9132599946 13698899919 15220999910 22831499865 27397799838 45662999730 68494499595 136988999190