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20347190675 = 527116269661
BaseRepresentation
bin10010111100110010…
…010111110110010011
31221112000211101022122
4102330302113312103
5313132340100200
613203010524455
71320136160420
oct227462276623
957460741278
1020347190675
1186a1505569
123b3a29672b
131bc35b91c6
14db0460d47
157e149c385
hex4bcc97d93

20347190675 has 12 divisors (see below), whose sum is σ = 28834876176. Its totient is φ = 13952359200.

The previous prime is 20347190641. The next prime is 20347190681. The reversal of 20347190675 is 57609174302.

It is not a de Polignac number, because 20347190675 - 220 = 20346142099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58134656 + ... + 58135005.

It is an arithmetic number, because the mean of its divisors is an integer number (2402906348).

Almost surely, 220347190675 is an apocalyptic number.

20347190675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20347190675 is a deficient number, since it is larger than the sum of its proper divisors (8487685501).

20347190675 is a wasteful number, since it uses less digits than its factorization.

20347190675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116269678 (or 116269673 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 44.

The spelling of 20347190675 in words is "twenty billion, three hundred forty-seven million, one hundred ninety thousand, six hundred seventy-five".

Divisors: 1 5 7 25 35 175 116269661 581348305 813887627 2906741525 4069438135 20347190675