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29925489 = 3113724509
BaseRepresentation
bin111001000101…
…0000001110001
32002022101001110
41302022001301
530130103424
62545223533
7512235216
oct162120161
962271043
1029925489
111598a510
12a031ba9
13627a0b9
143d8db0d
152961c29
hex1c8a071

29925489 has 16 divisors (see below), whose sum is σ = 44706240. Its totient is φ = 17645760.

The previous prime is 29925487. The next prime is 29925521. The reversal of 29925489 is 98452992.

It is a happy number.

It is not a de Polignac number, because 29925489 - 21 = 29925487 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29925481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11034 + ... + 13475.

It is an arithmetic number, because the mean of its divisors is an integer number (2794140).

Almost surely, 229925489 is an apocalyptic number.

It is an amenable number.

29925489 is a deficient number, since it is larger than the sum of its proper divisors (14780751).

29925489 is a wasteful number, since it uses less digits than its factorization.

29925489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24560.

The product of its digits is 466560, while the sum is 48.

The square root of 29925489 is about 5470.4194537531. The cubic root of 29925489 is about 310.4657895464.

The spelling of 29925489 in words is "twenty-nine million, nine hundred twenty-five thousand, four hundred eighty-nine".

Divisors: 1 3 11 33 37 111 407 1221 24509 73527 269599 808797 906833 2720499 9975163 29925489