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29087925 = 352387839
BaseRepresentation
bin110111011110…
…1100010110101
32000201211010120
41232331202311
524421303200
62515242153
7502146306
oct156754265
960654116
1029087925
1115468209
1298a9359
136045ab9
143c127ad
1528489a0
hex1bbd8b5

29087925 has 12 divisors (see below), whose sum is σ = 48092160. Its totient is φ = 15513520.

The previous prime is 29087923. The next prime is 29087999. The reversal of 29087925 is 52978092.

It is not a de Polignac number, because 29087925 - 21 = 29087923 is a prime.

It is a super-2 number, since 2×290879252 = 1692214761611250, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29087923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193845 + ... + 193994.

It is an arithmetic number, because the mean of its divisors is an integer number (4007680).

Almost surely, 229087925 is an apocalyptic number.

29087925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29087925 is a deficient number, since it is larger than the sum of its proper divisors (19004235).

29087925 is a wasteful number, since it uses less digits than its factorization.

29087925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387852 (or 387847 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 29087925 is about 5393.3222599804. The cubic root of 29087925 is about 307.5418675229.

The spelling of 29087925 in words is "twenty-nine million, eighty-seven thousand, nine hundred twenty-five".

Divisors: 1 3 5 15 25 75 387839 1163517 1939195 5817585 9695975 29087925