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138894575703 = 31317209494081
BaseRepresentation
bin1000000101011011000…
…0110000100001010111
3111021111210122111200120
42001112300300201113
54233424002410303
6143450212443023
713014636261642
oct2012660604127
9437453574616
10138894575703
11539a5404544
1222b03619473
1310136862390
146a188baa59
15392db68553
hex2056c30857

138894575703 has 16 divisors (see below), whose sum is σ = 211170034656. Its totient is φ = 80445726720.

The previous prime is 138894575693. The next prime is 138894575791. The reversal of 138894575703 is 307575498831.

It is a happy number.

It is not a de Polignac number, because 138894575703 - 29 = 138894575191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138894575803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104746378 + ... + 104747703.

It is an arithmetic number, because the mean of its divisors is an integer number (13198127166).

Almost surely, 2138894575703 is an apocalyptic number.

138894575703 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

138894575703 is a deficient number, since it is larger than the sum of its proper divisors (72275458953).

138894575703 is a wasteful number, since it uses less digits than its factorization.

138894575703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209494114.

The product of its (nonzero) digits is 25401600, while the sum is 60.

The spelling of 138894575703 in words is "one hundred thirty-eight billion, eight hundred ninety-four million, five hundred seventy-five thousand, seven hundred three".

Divisors: 1 3 13 17 39 51 221 663 209494081 628482243 2723423053 3561399377 8170269159 10684198131 46298191901 138894575703