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29525380 = 2253174657
BaseRepresentation
bin111000010100…
…0010110000100
32001120001012121
41300220112010
530024303010
62532455324
7505650553
oct160502604
961501177
1029525380
1115736945
129a7a544
136169c51
143cc7d9a
1528d33da
hex1c28584

29525380 has 24 divisors (see below), whose sum is σ = 62212248. Its totient is φ = 11770368.

The previous prime is 29525369. The next prime is 29525383. The reversal of 29525380 is 8352592.

It can be written as a sum of positive squares in 4 ways, for example, as 817216 + 28708164 = 904^2 + 5358^2 .

It is not an unprimeable number, because it can be changed into a prime (29525383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4012 + ... + 8668.

It is an arithmetic number, because the mean of its divisors is an integer number (2592177).

Almost surely, 229525380 is an apocalyptic number.

29525380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29525380 is an abundant number, since it is smaller than the sum of its proper divisors (32686868).

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

29525380 is a wasteful number, since it uses less digits than its factorization.

29525380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4983 (or 4981 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 29525380 is about 5433.7261616684. The cubic root of 29525380 is about 309.0759161753.

The spelling of 29525380 in words is "twenty-nine million, five hundred twenty-five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 317 634 1268 1585 3170 4657 6340 9314 18628 23285 46570 93140 1476269 2952538 5905076 7381345 14762690 29525380