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130782379 = 7133733853
BaseRepresentation
bin1111100101110…
…01010010101011
3100010002102200211
413302321102223
5231440014004
620551041551
73145426510
oct762712253
9303072624
10130782379
1167906812
12379702b7
1321130930
1413525307
15b735504
hex7cb94ab

130782379 has 16 divisors (see below), whose sum is σ = 161436352. Its totient is φ = 103171968.

The previous prime is 130782371. The next prime is 130782391. The reversal of 130782379 is 973287031.

It is a cyclic number.

It is not a de Polignac number, because 130782379 - 23 = 130782371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130782371) 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, 32017 + ... + 35869.

It is an arithmetic number, because the mean of its divisors is an integer number (10089772).

Almost surely, 2130782379 is an apocalyptic number.

130782379 is a deficient number, since it is larger than the sum of its proper divisors (30653973).

130782379 is a wasteful number, since it uses less digits than its factorization.

130782379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4246.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 130782379 is about 11436.0123732007. The cubic root of 130782379 is about 507.5939195410.

The spelling of 130782379 in words is "one hundred thirty million, seven hundred eighty-two thousand, three hundred seventy-nine".

Divisors: 1 7 13 91 373 2611 3853 4849 26971 33943 50089 350623 1437169 10060183 18683197 130782379