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13953138745 = 571330666239
BaseRepresentation
bin11001111111010110…
…00000000000111001
31100000102021220000111
430333223000000321
5212034000414440
610224320104321
71002525502540
oct147753000071
940012256014
1013953138745
115a10201727
122854a650a1
1314149b2320
14965199157
15569e784ea
hex33fac0039

13953138745 has 16 divisors (see below), whose sum is σ = 20607713280. Its totient is φ = 8831876544.

The previous prime is 13953138697. The next prime is 13953138763. The reversal of 13953138745 is 54783135931.

It is a cyclic number.

It is not a de Polignac number, because 13953138745 - 29 = 13953138233 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15332665 + ... + 15333574.

It is an arithmetic number, because the mean of its divisors is an integer number (1287982080).

Almost surely, 213953138745 is an apocalyptic number.

It is an amenable number.

13953138745 is a deficient number, since it is larger than the sum of its proper divisors (6654574535).

13953138745 is a wasteful number, since it uses less digits than its factorization.

13953138745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30666264.

The product of its digits is 1360800, while the sum is 49.

The spelling of 13953138745 in words is "thirteen billion, nine hundred fifty-three million, one hundred thirty-eight thousand, seven hundred forty-five".

Divisors: 1 5 7 13 35 65 91 455 30666239 153331195 214663673 398661107 1073318365 1993305535 2790627749 13953138745