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76838238 = 2324268791
BaseRepresentation
bin1001001010001…
…11010101011110
312100120210020200
410211013111132
5124132310423
611342524330
71622054121
oct445072536
9170523220
1076838238
113a411784
12218966a6
1312bc4219
14a2c23b8
156b2bd43
hex494755e

76838238 has 12 divisors (see below), whose sum is σ = 166482888. Its totient is φ = 25612740.

The previous prime is 76838221. The next prime is 76838273. The reversal of 76838238 is 83283867.

It is a super-2 number, since 2×768382382 = 11808229637889288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 76838193 and 76838202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2134378 + ... + 2134413.

It is an arithmetic number, because the mean of its divisors is an integer number (13873574).

Almost surely, 276838238 is an apocalyptic number.

76838238 is an abundant number, since it is smaller than the sum of its proper divisors (89644650).

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

76838238 is a wasteful number, since it uses less digits than its factorization.

76838238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4268799 (or 4268796 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 76838238 is about 8765.7422960067. The cubic root of 76838238 is about 425.1339610003.

The spelling of 76838238 in words is "seventy-six million, eight hundred thirty-eight thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 9 18 4268791 8537582 12806373 25612746 38419119 76838238