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29195920837 = 179163105703
BaseRepresentation
bin11011001100001101…
…100110010111000101
32210100201021110010101
4123030031212113011
5434243123431322
621225025524101
72052334142506
oct331415462705
983321243111
1029195920837
11114223774a6
1257a97a3631
1329a3914605
1415ad73abad
15b5d248327
hex6cc3665c5

29195920837 has 4 divisors (see below), whose sum is σ = 29359026720. Its totient is φ = 29032814956.

The previous prime is 29195920777. The next prime is 29195920841. The reversal of 29195920837 is 73802959192.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29195920837 - 223 = 29187532229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29195921837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81552673 + ... + 81553030.

It is an arithmetic number, because the mean of its divisors is an integer number (7339756680).

Almost surely, 229195920837 is an apocalyptic number.

It is an amenable number.

29195920837 is a deficient number, since it is larger than the sum of its proper divisors (163105883).

29195920837 is a wasteful number, since it uses less digits than its factorization.

29195920837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163105882.

The product of its (nonzero) digits is 2449440, while the sum is 55.

The spelling of 29195920837 in words is "twenty-nine billion, one hundred ninety-five million, nine hundred twenty thousand, eight hundred thirty-seven".

Divisors: 1 179 163105703 29195920837