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139823341 = 719974763
BaseRepresentation
bin10000101010110…
…00100011101101
3100202002202120021
420111120203231
5241243321331
621512522141
73315323140
oct1025304355
9322082507
10139823341
1171a21389
123a9b0351
1322c77b08
14147da057
15c41e211
hex85588ed

139823341 has 4 divisors (see below), whose sum is σ = 159798112. Its totient is φ = 119848572.

The previous prime is 139823339. The next prime is 139823357. The reversal of 139823341 is 143328931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 139823341 - 21 = 139823339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 139823297 and 139823306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139823741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9987375 + ... + 9987388.

It is an arithmetic number, because the mean of its divisors is an integer number (39949528).

Almost surely, 2139823341 is an apocalyptic number.

It is an amenable number.

139823341 is a deficient number, since it is larger than the sum of its proper divisors (19974771).

139823341 is an equidigital number, since it uses as much as digits as its factorization.

139823341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19974770.

The product of its digits is 15552, while the sum is 34.

The square root of 139823341 is about 11824.6920044456. The cubic root of 139823341 is about 519.0309132998.

The spelling of 139823341 in words is "one hundred thirty-nine million, eight hundred twenty-three thousand, three hundred forty-one".

Divisors: 1 7 19974763 139823341