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20353730235 = 353313409573
BaseRepresentation
bin10010111101001011…
…010100011010111011
31221112111010121220120
4102331023110122323
5313141023331420
613203403024323
71320245565246
oct227513243273
957474117816
1020353730235
1186a5171863
123b4050b0a3
131bc4a68977
14db128425d
157e1d3ed40
hex4bd2d46bb

20353730235 has 16 divisors (see below), whose sum is σ = 32575877664. Its totient is φ = 10852019712.

The previous prime is 20353730227. The next prime is 20353730251. The reversal of 20353730235 is 53203735302.

It is not a de Polignac number, because 20353730235 - 23 = 20353730227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20353730196 and 20353730205.

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, 155092 + ... + 254481.

It is an arithmetic number, because the mean of its divisors is an integer number (2035992354).

Almost surely, 220353730235 is an apocalyptic number.

20353730235 is a deficient number, since it is larger than the sum of its proper divisors (12222147429).

20353730235 is a wasteful number, since it uses less digits than its factorization.

20353730235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412894.

The product of its (nonzero) digits is 56700, while the sum is 33.

The spelling of 20353730235 in words is "twenty billion, three hundred fifty-three million, seven hundred thirty thousand, two hundred thirty-five".

Divisors: 1 3 5 15 3313 9939 16565 49695 409573 1228719 2047865 6143595 1356915349 4070746047 6784576745 20353730235