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29051389279 = 113373782993
BaseRepresentation
bin11011000011100110…
…010000010101011111
32202222122022111002201
4123003212100111133
5433444123424104
621202424032331
72045630506633
oct330346202537
982878274081
1029051389279
111135882a830
1257693026a7
13297c9ab793
141598476dc3
15b506e90a4
hex6c399055f

29051389279 has 8 divisors (see below), whose sum is σ = 31701861072. Its totient is φ = 26402490240.

The previous prime is 29051389273. The next prime is 29051389327. The reversal of 29051389279 is 97298315092.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29051389279 - 27 = 29051389151 is a prime.

It is a super-2 number, since 2×290513892792 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29051389273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354394 + ... + 428599.

It is an arithmetic number, because the mean of its divisors is an integer number (3962732634).

Almost surely, 229051389279 is an apocalyptic number.

29051389279 is a deficient number, since it is larger than the sum of its proper divisors (2650471793).

29051389279 is a wasteful number, since it uses less digits than its factorization.

29051389279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786377.

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

The spelling of 29051389279 in words is "twenty-nine billion, fifty-one million, three hundred eighty-nine thousand, two hundred seventy-nine".

Divisors: 1 11 3373 37103 782993 8612923 2641035389 29051389279