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29812025 = 5223139373
BaseRepresentation
bin111000110111…
…0010100111001
32002002121102002
41301232110321
530112441100
62542550345
7511253345
oct161562471
962077362
1029812025
1115912241
129b983b5
13623a569
143d60625
15293d2d5
hex1c6e539

29812025 has 24 divisors (see below), whose sum is σ = 38955840. Its totient is φ = 22587840.

The previous prime is 29812021. The next prime is 29812039. The reversal of 29812025 is 52021892.

It is not a de Polignac number, because 29812025 - 22 = 29812021 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29812021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79739 + ... + 80111.

It is an arithmetic number, because the mean of its divisors is an integer number (1623160).

Almost surely, 229812025 is an apocalyptic number.

29812025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29812025 is a deficient number, since it is larger than the sum of its proper divisors (9143815).

29812025 is a wasteful number, since it uses less digits than its factorization.

29812025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 29812025 is about 5460.0389192752. The cubic root of 29812025 is about 310.0729103566.

The spelling of 29812025 in words is "twenty-nine million, eight hundred twelve thousand, twenty-five".

Divisors: 1 5 23 25 115 139 373 575 695 1865 3197 3475 8579 9325 15985 42895 51847 79925 214475 259235 1192481 1296175 5962405 29812025