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29102929 = 171711937
BaseRepresentation
bin110111100000…
…1001101010001
32000202120201021
41233001031101
524422243204
62515435441
7502241122
oct157011521
960676637
1029102929
1115478509
1298b5b81
13604c88b
143c18049
15284d154
hex1bc1351

29102929 has 4 divisors (see below), whose sum is σ = 30814884. Its totient is φ = 27390976.

The previous prime is 29102903. The next prime is 29102987. The reversal of 29102929 is 92920192.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10093329 + 19009600 = 3177^2 + 4360^2 .

It is a cyclic number.

It is not a de Polignac number, because 29102929 - 29 = 29102417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29102894 and 29102903.

It is not an unprimeable number, because it can be changed into a prime (29102999) 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, 855952 + ... + 855985.

It is an arithmetic number, because the mean of its divisors is an integer number (7703721).

Almost surely, 229102929 is an apocalyptic number.

It is an amenable number.

29102929 is a deficient number, since it is larger than the sum of its proper divisors (1711955).

29102929 is a wasteful number, since it uses less digits than its factorization.

29102929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711954.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 29102929 is about 5394.7130600246. The cubic root of 29102929 is about 307.5947367120.

The spelling of 29102929 in words is "twenty-nine million, one hundred two thousand, nine hundred twenty-nine".

Divisors: 1 17 1711937 29102929