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29292892639 = 257113980127
BaseRepresentation
bin11011010001111111…
…100001000111011111
32210121110202010102121
4123101333201013133
5434442440031024
621242412203411
72054622323233
oct332177410737
983543663377
1029292892639
111147208a88a
125816169567
1329baa3798a
1415bc5805c3
15b66a008e4
hex6d1fe11df

29292892639 has 4 divisors (see below), whose sum is σ = 29406873024. Its totient is φ = 29178912256.

The previous prime is 29292892633. The next prime is 29292892679. The reversal of 29292892639 is 93629829292.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29292892639 - 219 = 29292368351 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 (29292892633) 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, 56989807 + ... + 56990320.

It is an arithmetic number, because the mean of its divisors is an integer number (7351718256).

Almost surely, 229292892639 is an apocalyptic number.

29292892639 is a deficient number, since it is larger than the sum of its proper divisors (113980385).

29292892639 is a wasteful number, since it uses less digits than its factorization.

29292892639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113980384.

The product of its digits is 15116544, while the sum is 61.

The spelling of 29292892639 in words is "twenty-nine billion, two hundred ninety-two million, eight hundred ninety-two thousand, six hundred thirty-nine".

Divisors: 1 257 113980127 29292892639