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139386111380 = 22517029409261
BaseRepresentation
bin1000000111010000001…
…1110100010110010100
3111022210001120002212122
42001310003310112110
54240430321031010
6144011052035112
713033055253365
oct2016403642624
9438701502778
10139386111380
115412790a57a
1223020162a98
13101b46428a9
146a63cabb6c
15395bdad855
hex20740f4594

139386111380 has 24 divisors (see below), whose sum is σ = 292728738120. Its totient is φ = 55751034240.

The previous prime is 139386111377. The next prime is 139386111419. The reversal of 139386111380 is 83111683931.

It can be written as a sum of positive squares in 4 ways, for example, as 37954053124 + 101432058256 = 194818^2 + 318484^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135950 + ... + 545210.

It is an arithmetic number, because the mean of its divisors is an integer number (12197030755).

Almost surely, 2139386111380 is an apocalyptic number.

139386111380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139386111380 is an abundant number, since it is smaller than the sum of its proper divisors (153342626740).

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

139386111380 is a wasteful number, since it uses less digits than its factorization.

139386111380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426299 (or 426297 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 139386111380 in words is "one hundred thirty-nine billion, three hundred eighty-six million, one hundred eleven thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 17029 34058 68116 85145 170290 340580 409261 818522 1637044 2046305 4092610 8185220 6969305569 13938611138 27877222276 34846527845 69693055690 139386111380