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29013199525 = 522305750333
BaseRepresentation
bin11011000001010100…
…100100101010100101
32202212222110020121101
4123001110210222211
5433404334341100
621154541320101
72044655061352
oct330124445245
982788406541
1029013199525
1111339216252
125758566031
132974ac9bab
141593375629
15b4c1a386a
hex6c1524aa5

29013199525 has 12 divisors (see below), whose sum is σ = 35978642532. Its totient is φ = 23209091840.

The previous prime is 29013199517. The next prime is 29013199529. The reversal of 29013199525 is 52599131092.

It can be written as a sum of positive squares in 6 ways, for example, as 2524660516 + 26488539009 = 50246^2 + 162753^2 .

It is not a de Polignac number, because 29013199525 - 23 = 29013199517 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 (29013199529) 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, 551259 + ... + 601591.

It is an arithmetic number, because the mean of its divisors is an integer number (2998220211).

Almost surely, 229013199525 is an apocalyptic number.

29013199525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29013199525 is a deficient number, since it is larger than the sum of its proper divisors (6965443007).

29013199525 is a wasteful number, since it uses less digits than its factorization.

29013199525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73400 (or 73395 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 46.

The spelling of 29013199525 in words is "twenty-nine billion, thirteen million, one hundred ninety-nine thousand, five hundred twenty-five".

Divisors: 1 5 25 23057 50333 115285 251665 576425 1258325 1160527981 5802639905 29013199525