Search a number
-
+
131667173980 = 22517477376687
BaseRepresentation
bin111101010011111111…
…0011010001001011100
3110120212010000110101021
41322213332122021130
54124123244031410
6140253112253524
712340556340616
oct1724776321134
9416763013337
10131667173980
1150926761671
12216270a12a4
13c5543c9a04
146530a87db6
1536593d0eda
hex1ea7f9a25c

131667173980 has 24 divisors (see below), whose sum is σ = 276517620288. Its totient is φ = 52663716288.

The previous prime is 131667173923. The next prime is 131667173993. The reversal of 131667173980 is 89371766131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161197 + ... + 537883.

It is an arithmetic number, because the mean of its divisors is an integer number (11521567512).

Almost surely, 2131667173980 is an apocalyptic number.

131667173980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131667173980 is an abundant number, since it is smaller than the sum of its proper divisors (144850446308).

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

131667173980 is a wasteful number, since it uses less digits than its factorization.

131667173980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394173 (or 394171 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 52.

The spelling of 131667173980 in words is "one hundred thirty-one billion, six hundred sixty-seven million, one hundred seventy-three thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 17477 34954 69908 87385 174770 349540 376687 753374 1506748 1883435 3766870 7533740 6583358699 13166717398 26333434796 32916793495 65833586990 131667173980