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29142553 = 112649323
BaseRepresentation
bin110111100101…
…0111000011001
32000211121001211
41233022320121
524430030203
62520343121
7502464466
oct157127031
960747054
1029142553
11154a5260
129914aa1
13606491b
143c2866d
152859c6d
hex1bcae19

29142553 has 4 divisors (see below), whose sum is σ = 31791888. Its totient is φ = 26493220.

The previous prime is 29142551. The next prime is 29142557. The reversal of 29142553 is 35524192.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29142553 - 21 = 29142551 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29142551) 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, 1324651 + ... + 1324672.

It is an arithmetic number, because the mean of its divisors is an integer number (7947972).

Almost surely, 229142553 is an apocalyptic number.

It is an amenable number.

29142553 is a deficient number, since it is larger than the sum of its proper divisors (2649335).

29142553 is a wasteful number, since it uses less digits than its factorization.

29142553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649334.

The product of its digits is 10800, while the sum is 31.

The square root of 29142553 is about 5398.3842953239. The cubic root of 29142553 is about 307.7342714257.

The spelling of 29142553 in words is "twenty-nine million, one hundred forty-two thousand, five hundred fifty-three".

Divisors: 1 11 2649323 29142553