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138592878770 = 25127109128251
BaseRepresentation
bin1000000100010011000…
…1111000000010110010
3111020201202221201022002
42001010301320002302
54232314234110040
6143400234214002
713004314014023
oct2010461700262
9436652851262
10138592878770
1153860081135
1222a3a584302
13100b91bc098
1469ca7c4c4a
153912421a15
hex2044c780b2

138592878770 has 16 divisors (see below), whose sum is σ = 251431492608. Its totient is φ = 55000638000.

The previous prime is 138592878761. The next prime is 138592878791. The reversal of 138592878770 is 77878295831.

It is a junction number, because it is equal to n+sod(n) for n = 138592878697 and 138592878706.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 54562856 + ... + 54565395.

It is an arithmetic number, because the mean of its divisors is an integer number (15714468288).

Almost surely, 2138592878770 is an apocalyptic number.

138592878770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138592878770 is a deficient number, since it is larger than the sum of its proper divisors (112838613838).

138592878770 is a wasteful number, since it uses less digits than its factorization.

138592878770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109128385.

The product of its (nonzero) digits is 47416320, while the sum is 65.

The spelling of 138592878770 in words is "one hundred thirty-eight billion, five hundred ninety-two million, eight hundred seventy-eight thousand, seven hundred seventy".

Divisors: 1 2 5 10 127 254 635 1270 109128251 218256502 545641255 1091282510 13859287877 27718575754 69296439385 138592878770