Search a number
-
+
51528792680 = 23519292337967
BaseRepresentation
bin101111111111010110…
…101111101001101000
311221000010111212220222
4233333112233221220
51321012332331210
635401052505212
73502634340161
oct577726575150
9157003455828
1051528792680
111a942729682
129ba0a7b208
134b22703591
1426cb7aa768
151518bca655
hexbff5afa68

51528792680 has 64 divisors (see below), whose sum is σ = 126250272000. Its totient is φ = 18853357824.

The previous prime is 51528792673. The next prime is 51528792713. The reversal of 51528792680 is 8629782515.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1146944 + ... + 1191023.

It is an arithmetic number, because the mean of its divisors is an integer number (1972660500).

Almost surely, 251528792680 is an apocalyptic number.

It is an amenable number.

51528792680 is an abundant number, since it is smaller than the sum of its proper divisors (74721479320).

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

51528792680 is a wasteful number, since it uses less digits than its factorization.

51528792680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338026 (or 2338022 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 51528792680 in words is "fifty-one billion, five hundred twenty-eight million, seven hundred ninety-two thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 29 38 40 58 76 95 116 145 152 190 232 290 380 551 580 760 1102 1160 2204 2755 4408 5510 11020 22040 2337967 4675934 9351868 11689835 18703736 23379670 44421373 46759340 67801043 88842746 93518680 135602086 177685492 222106865 271204172 339005215 355370984 444213730 542408344 678010430 888427460 1288219817 1356020860 1776854920 2576439634 2712041720 5152879268 6441099085 10305758536 12882198170 25764396340 51528792680