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131570775480 = 23358912319361
BaseRepresentation
bin111101010001000111…
…0101011010110111000
3110120121101121220111110
41322202032223112320
54123424104303410
6140235350200320
712335306065464
oct1724216532670
9416541556443
10131570775480
11508872aaa91
12215ba9530a0
13c53a447591
146521d534a4
153650bdd720
hex1ea23ab5b8

131570775480 has 64 divisors (see below), whose sum is σ = 399147328800. Its totient is φ = 34691317760.

The previous prime is 131570775467. The next prime is 131570775481. The reversal of 131570775480 is 84577075131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131570775481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6149001 + ... + 6170360.

Almost surely, 2131570775480 is an apocalyptic number.

131570775480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131570775480 is an abundant number, since it is smaller than the sum of its proper divisors (267576553320).

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

131570775480 is a wasteful number, since it uses less digits than its factorization.

131570775480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12319464 (or 12319460 counting only the distinct ones).

The product of its (nonzero) digits is 823200, while the sum is 48.

The spelling of 131570775480 in words is "one hundred thirty-one billion, five hundred seventy million, seven hundred seventy-five thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 89 120 178 267 356 445 534 712 890 1068 1335 1780 2136 2670 3560 5340 10680 12319361 24638722 36958083 49277444 61596805 73916166 98554888 123193610 147832332 184790415 246387220 295664664 369580830 492774440 739161660 1096423129 1478323320 2192846258 3289269387 4385692516 5482115645 6578538774 8771385032 10964231290 13157077548 16446346935 21928462580 26314155096 32892693870 43856925160 65785387740 131570775480