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130786838 = 27131514759
BaseRepresentation
bin1111100101110…
…10011000010110
3100010002122210222
413302322120112
5231440134323
620551114342
73145445510
oct762723026
9303078728
10130786838
116790a0a6
12379729b2
1321132980
1413526bb0
15b7369c8
hex7cba616

130786838 has 32 divisors (see below), whose sum is σ = 243102720. Its totient is φ = 51386400.

The previous prime is 130786829. The next prime is 130786841. The reversal of 130786838 is 838687031.

It is a congruent number.

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, 25103 + ... + 29861.

It is an arithmetic number, because the mean of its divisors is an integer number (7596960).

Almost surely, 2130786838 is an apocalyptic number.

130786838 is a deficient number, since it is larger than the sum of its proper divisors (112315882).

130786838 is a wasteful number, since it uses less digits than its factorization.

130786838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4932.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 130786838 is about 11436.2073258576. The cubic root of 130786838 is about 507.5996882478.

The spelling of 130786838 in words is "one hundred thirty million, seven hundred eighty-six thousand, eight hundred thirty-eight".

Divisors: 1 2 7 13 14 26 91 151 182 302 1057 1963 2114 3926 4759 9518 13741 27482 33313 61867 66626 123734 433069 718609 866138 1437218 5030263 9341917 10060526 18683834 65393419 130786838