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130747881 = 3112360187
BaseRepresentation
bin1111100101100…
…00110111101001
3100010000200101010
413302300313221
5231432413011
620550214133
73145224105
oct762606751
9303020333
10130747881
1167892900
1237954349
132111b014
1413516905
15b72a1a6
hex7cb0de9

130747881 has 12 divisors (see below), whose sum is σ = 191620016. Its totient is φ = 79240920.

The previous prime is 130747861. The next prime is 130747889. The reversal of 130747881 is 188747031.

It is not a de Polignac number, because 130747881 - 26 = 130747817 is a prime.

It is a super-2 number, since 2×1307478812 = 34190016771980322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130747889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179731 + ... + 180456.

Almost surely, 2130747881 is an apocalyptic number.

130747881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130747881 is a deficient number, since it is larger than the sum of its proper divisors (60872135).

130747881 is a wasteful number, since it uses less digits than its factorization.

130747881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360212 (or 360201 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 130747881 is about 11434.5039682533. The cubic root of 130747881 is about 507.5492842849.

The spelling of 130747881 in words is "one hundred thirty million, seven hundred forty-seven thousand, eight hundred eighty-one".

Divisors: 1 3 11 33 121 363 360187 1080561 3962057 11886171 43582627 130747881