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29679542135 = 5193183121421
BaseRepresentation
bin11011101001000010…
…011101111101110111
32211121102021221211022
4123221002131331313
5441240430322020
621345023331355
72100325642235
oct335102357567
984542257738
1029679542135
1111650367321
125903750b5b
132a4cb83669
141617a6b955
15b8a928625
hex6e909df77

29679542135 has 32 divisors (see below), whose sum is σ = 39165880320. Its totient is φ = 21505910400.

The previous prime is 29679542083. The next prime is 29679542159. The reversal of 29679542135 is 53124597692.

It is a happy number.

It is not a de Polignac number, because 29679542135 - 26 = 29679542071 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183725 + ... + 305145.

It is an arithmetic number, because the mean of its divisors is an integer number (1223933760).

Almost surely, 229679542135 is an apocalyptic number.

29679542135 is a deficient number, since it is larger than the sum of its proper divisors (9486338185).

29679542135 is a wasteful number, since it uses less digits than its factorization.

29679542135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121559.

The product of its digits is 4082400, while the sum is 53.

The spelling of 29679542135 in words is "twenty-nine billion, six hundred seventy-nine million, five hundred forty-two thousand, one hundred thirty-five".

Divisors: 1 5 19 31 83 95 155 415 589 1577 2573 2945 7885 12865 48887 121421 244435 607105 2306999 3764051 10077943 11534995 18820255 50389715 71516969 191480917 312416233 357584845 957404585 1562081165 5935908427 29679542135