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76839493796 = 221319431808669
BaseRepresentation
bin100011110001111111…
…1011010000010100100
321100100002001201112122
41013203333122002210
52224331402300141
655144413005112
75360103630542
oct1074377320244
9240302051478
1076839493796
112a650988a8a
1212a85483798
1373274135c0
143a0d110d92
151eeacc264b
hex11e3fda0a4

76839493796 has 48 divisors (see below), whose sum is σ = 155979700800. Its totient is φ = 32816472192.

The previous prime is 76839493769. The next prime is 76839493799. The reversal of 76839493796 is 69739493867.

It is not an unprimeable number, because it can be changed into a prime (76839493799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 861851 + ... + 946818.

It is an arithmetic number, because the mean of its divisors is an integer number (3249577100).

Almost surely, 276839493796 is an apocalyptic number.

76839493796 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

76839493796 is an abundant number, since it is smaller than the sum of its proper divisors (79140207004).

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

76839493796 is a wasteful number, since it uses less digits than its factorization.

76839493796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808748 (or 1808746 counting only the distinct ones).

The product of its digits is 370355328, while the sum is 71.

Adding to 76839493796 its sum of digits (71), we get a palindrome (76839493867).

The spelling of 76839493796 in words is "seventy-six billion, eight hundred thirty-nine million, four hundred ninety-three thousand, seven hundred ninety-six".

Divisors: 1 2 4 13 19 26 38 43 52 76 86 172 247 494 559 817 988 1118 1634 2236 3268 10621 21242 42484 1808669 3617338 7234676 23512697 34364711 47025394 68729422 77772767 94050788 137458844 155545534 311091068 446741243 893482486 1011045971 1477682573 1786964972 2022091942 2955365146 4044183884 5910730292 19209873449 38419746898 76839493796