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130779617943 = 31331611773307
BaseRepresentation
bin111100111001100010…
…0101001101010010111
3110111120020220221101110
41321303010221222113
54120314040233233
6140025045030103
712306561260652
oct1716304515227
9414506827343
10130779617943
1150510759687
12214199b5333
13c44256c420
146488c4a899
153606511663
hex1e73129a97

130779617943 has 32 divisors (see below), whose sum is σ = 197021612032. Its totient is φ = 76606819200.

The previous prime is 130779617923. The next prime is 130779617957. The reversal of 130779617943 is 349716977031.

It is not a de Polignac number, because 130779617943 - 224 = 130762840727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130779617923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 812905 + ... + 960402.

It is an arithmetic number, because the mean of its divisors is an integer number (6156925376).

Almost surely, 2130779617943 is an apocalyptic number.

130779617943 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

130779617943 is a deficient number, since it is larger than the sum of its proper divisors (66241994089).

130779617943 is a wasteful number, since it uses less digits than its factorization.

130779617943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773415.

The product of its (nonzero) digits is 6001128, while the sum is 57.

The spelling of 130779617943 in words is "one hundred thirty billion, seven hundred seventy-nine million, six hundred seventeen thousand, nine hundred forty-three".

Divisors: 1 3 13 31 39 61 93 183 403 793 1209 1891 2379 5673 24583 73749 1773307 5319921 23052991 54972517 69158973 108171727 164917551 324515181 714642721 1406232451 2143928163 3353323537 4218697353 10059970611 43593205981 130779617943