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13709379320 = 23571319210433
BaseRepresentation
bin11001100010010010…
…01000011011111000
31022101102121121221122
430301021020123320
5211034100114240
610144211324412
7663505541630
oct146111103370
938342547848
1013709379320
1158a565065a
1227a72b0708
1313a6346290
14940a656c0
155538784b5
hex3312486f8

13709379320 has 192 divisors, whose sum is σ = 40071568320. Its totient is φ = 4110041088.

The previous prime is 13709379311. The next prime is 13709379323. The reversal of 13709379320 is 2397390731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13709379323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1308824 + ... + 1319256.

It is an arithmetic number, because the mean of its divisors is an integer number (208706085).

Almost surely, 213709379320 is an apocalyptic number.

13709379320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13709379320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20035784160).

13709379320 is an abundant number, since it is smaller than the sum of its proper divisors (26362189000).

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

13709379320 is a wasteful number, since it uses less digits than its factorization.

13709379320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10502 (or 10479 counting only the distinct ones).

The product of its (nonzero) digits is 214326, while the sum is 44.

The spelling of 13709379320 in words is "thirteen billion, seven hundred nine million, three hundred seventy-nine thousand, three hundred twenty".