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13875701450 = 2521321347233
BaseRepresentation
bin11001110110000111…
…00110011011001010
31022211000120200000112
430323003212123022
5211404134421300
610212512234322
71000565342042
oct147303463312
938730520015
1013875701450
115980520966
122832b3b9a2
13140193b540
14958b9c722
1556327de35
hex33b0e66ca

13875701450 has 24 divisors (see below), whose sum is σ = 27794098668. Its totient is φ = 5123335680.

The previous prime is 13875701443. The next prime is 13875701453. The reversal of 13875701450 is 5410757831.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 6695003329 + 7180698121 = 81823^2 + 84739^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13875701398 and 13875701407.

It is not an unprimeable number, because it can be changed into a prime (13875701453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10672967 + ... + 10674266.

Almost surely, 213875701450 is an apocalyptic number.

13875701450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13875701450 is an abundant number, since it is smaller than the sum of its proper divisors (13918397218).

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

13875701450 is a wasteful number, since it uses less digits than its factorization.

13875701450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21347258 (or 21347253 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 41.

The spelling of 13875701450 in words is "thirteen billion, eight hundred seventy-five million, seven hundred one thousand, four hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 325 650 21347233 42694466 106736165 213472330 277514029 533680825 555028058 1067361650 1387570145 2775140290 6937850725 13875701450