Search a number
-
+
131155430398 = 22571559163673
BaseRepresentation
bin111101000100101111…
…0010000101111111110
3110112112110002012011021
41322021132100233332
54122101242233043
6140130232014354
712322103523046
oct1721136205776
9415473065137
10131155430398
1150693904093
12215038313ba
13c4a2392565
1464c2b16726
1536294e83ed
hex1e89790bfe

131155430398 has 16 divisors (see below), whose sum is σ = 197626534560. Its totient is φ = 65280249856.

The previous prime is 131155430387. The next prime is 131155430477. The reversal of 131155430398 is 893034551131.

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, 719490 + ... + 883162.

It is an arithmetic number, because the mean of its divisors is an integer number (12351658410).

Almost surely, 2131155430398 is an apocalyptic number.

131155430398 is a deficient number, since it is larger than the sum of its proper divisors (66471104162).

131155430398 is a wasteful number, since it uses less digits than its factorization.

131155430398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165491.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 131155430398 in words is "one hundred thirty-one billion, one hundred fifty-five million, four hundred thirty thousand, three hundred ninety-eight".

Divisors: 1 2 257 514 1559 3118 163673 327346 400663 801326 42063961 84127922 255166207 510332414 65577715199 131155430398