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139294792 = 23713191339
BaseRepresentation
bin10000100110101…
…11100001001000
3100201002220112101
420103113201020
5241124413132
621453323144
73310662160
oct1023274110
9321086471
10139294792
11716a026a
123a7964b4
1322b21370
14146dd5a0
15c3677e7
hex84d7848

139294792 has 32 divisors (see below), whose sum is σ = 321451200. Its totient is φ = 55105344.

The previous prime is 139294783. The next prime is 139294817. The reversal of 139294792 is 297492931.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94942 + ... + 96397.

It is an arithmetic number, because the mean of its divisors is an integer number (10045350).

Almost surely, 2139294792 is an apocalyptic number.

It is an amenable number.

139294792 is an abundant number, since it is smaller than the sum of its proper divisors (182156408).

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

139294792 is a wasteful number, since it uses less digits than its factorization.

139294792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191365 (or 191361 counting only the distinct ones).

The product of its digits is 244944, while the sum is 46.

The square root of 139294792 is about 11802.3214665590. The cubic root of 139294792 is about 518.3760877967.

It can be divided in two parts, 13929 and 4792, that added together give a triangular number (18721 = T193).

The spelling of 139294792 in words is "one hundred thirty-nine million, two hundred ninety-four thousand, seven hundred ninety-two".

Divisors: 1 2 4 7 8 13 14 26 28 52 56 91 104 182 364 728 191339 382678 765356 1339373 1530712 2487407 2678746 4974814 5357492 9949628 10714984 17411849 19899256 34823698 69647396 139294792