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29146189 = 291005041
BaseRepresentation
bin110111100101…
…1110001001101
32000211210001111
41233023301031
524430134224
62520412021
7502511212
oct157136115
960753044
1029146189
11154a7a66
129917011
136066487
143c29b09
15285ad94
hex1bcbc4d

29146189 has 4 divisors (see below), whose sum is σ = 30151260. Its totient is φ = 28141120.

The previous prime is 29146153. The next prime is 29146207. The reversal of 29146189 is 98164192.

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 23600164 + 5546025 = 4858^2 + 2355^2 .

It is a cyclic number.

It is not a de Polignac number, because 29146189 - 215 = 29113421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29146489) 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, 502492 + ... + 502549.

It is an arithmetic number, because the mean of its divisors is an integer number (7537815).

Almost surely, 229146189 is an apocalyptic number.

29146189 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

29146189 is a deficient number, since it is larger than the sum of its proper divisors (1005071).

29146189 is a wasteful number, since it uses less digits than its factorization.

29146189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005070.

The product of its digits is 31104, while the sum is 40.

The square root of 29146189 is about 5398.7210522493. The cubic root of 29146189 is about 307.7470691523.

It can be divided in two parts, 29 and 146189, that multiplied together give a square (4239481 = 20592).

The spelling of 29146189 in words is "twenty-nine million, one hundred forty-six thousand, one hundred eighty-nine".

Divisors: 1 29 1005041 29146189