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29145252 = 2232428771
BaseRepresentation
bin110111100101…
…1100010100100
32000211201202210
41233023202210
524430122002
62520403420
7502505403
oct157134244
960751683
1029145252
11154a7294
129916570
136065c16
143c2963a
15285a96c
hex1bcb8a4

29145252 has 12 divisors (see below), whose sum is σ = 68005616. Its totient is φ = 9715080.

The previous prime is 29145247. The next prime is 29145253. The reversal of 29145252 is 25254192.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (29145253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214374 + ... + 1214397.

Almost surely, 229145252 is an apocalyptic number.

It is an amenable number.

29145252 is an abundant number, since it is smaller than the sum of its proper divisors (38860364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29145252 is a wasteful number, since it uses less digits than its factorization.

29145252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428778 (or 2428776 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 29145252 is about 5398.6342717395. The cubic root of 29145252 is about 307.7437712701.

The spelling of 29145252 in words is "twenty-nine million, one hundred forty-five thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 2428771 4857542 7286313 9715084 14572626 29145252