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131330403760 = 2456724501941
BaseRepresentation
bin111101001001111100…
…1101110110110110000
3110112222122022202111011
41322103321232312300
54122431040410020
6140155442200304
712326330004343
oct1722371566660
9415878282434
10131330403760
1150773653176
1221552353094
13c4cc6c64aa
1464dc06245a
153639a5c35a
hex1e93e6edb0

131330403760 has 40 divisors (see below), whose sum is σ = 309900562416. Its totient is φ = 51748097280.

The previous prime is 131330403751. The next prime is 131330403761. The reversal of 131330403760 is 67304033131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (131330403761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12245611 + ... + 12256330.

Almost surely, 2131330403760 is an apocalyptic number.

131330403760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131330403760 is an abundant number, since it is smaller than the sum of its proper divisors (178570158656).

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

131330403760 is a wasteful number, since it uses less digits than its factorization.

131330403760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24502021 (or 24502015 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 31.

Adding to 131330403760 its reverse (67304033131), we get a palindrome (198634436891).

The spelling of 131330403760 in words is "one hundred thirty-one billion, three hundred thirty million, four hundred three thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 67 80 134 268 335 536 670 1072 1340 2680 5360 24501941 49003882 98007764 122509705 196015528 245019410 392031056 490038820 980077640 1641630047 1960155280 3283260094 6566520188 8208150235 13133040376 16416300470 26266080752 32832600940 65665201880 131330403760