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130723538465 = 5131927997727
BaseRepresentation
bin111100110111110111…
…0101110011000100001
3110111102100101210210202
41321233232232120201
54120210211212330
6140015323034545
712305310512642
oct1715756563041
9414370353722
10130723538465
1150492036303
122140306ba55
13c433a65ac0
14648160d6c9
153601635445
hex1e6fbae621

130723538465 has 96 divisors (see below), whose sum is σ = 182663470080. Its totient is φ = 89242103808.

The previous prime is 130723538441. The next prime is 130723538489. The reversal of 130723538465 is 564835327031.

It is an interprime number because it is at equal distance from previous prime (130723538441) and next prime (130723538489).

It is not a de Polignac number, because 130723538465 - 212 = 130723534369 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 179811932 + ... + 179812658.

It is an arithmetic number, because the mean of its divisors is an integer number (1902744480).

Almost surely, 2130723538465 is an apocalyptic number.

It is an amenable number.

130723538465 is a deficient number, since it is larger than the sum of its proper divisors (51939931615).

130723538465 is a wasteful number, since it uses less digits than its factorization.

130723538465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959 (or 940 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 47.

The spelling of 130723538465 in words is "one hundred thirty billion, seven hundred twenty-three million, five hundred thirty-eight thousand, four hundred sixty-five".

Divisors: 1 5 13 19 65 79 95 97 247 361 395 485 727 1027 1235 1261 1501 1805 1843 3635 4693 5135 6305 7505 7663 9215 9451 13813 19513 23465 23959 28519 35017 38315 47255 57433 69065 70519 97565 99619 119795 142595 145597 175085 179569 262447 287165 352595 370747 455221 498095 727985 746629 897845 916747 1091227 1312235 1339861 1853735 1892761 2276105 2766343 3411811 3733145 4583735 5456135 5571001 6699305 9463805 13831715 14185951 17059055 17418193 20733313 25457359 27855005 35962459 70929755 72423013 87090965 103666565 105849019 127286795 179812295 269533069 330945667 362115065 529245095 1347665345 1376037247 1654728335 2011131361 6880186235 10055656805 26144707693 130723538465