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29204371825 = 521768716169
BaseRepresentation
bin11011001100101101…
…110101100101110001
32210101022011210200221
4123030231311211301
5434302304344300
621225531013041
72052466031116
oct331455654561
983338153627
1029204371825
1111427119892
1257b059a181
1329a55b30b5
1415b08da90d
15b5dd6731a
hex6ccb75971

29204371825 has 12 divisors (see below), whose sum is σ = 38343622860. Its totient is φ = 21989173760.

The previous prime is 29204371817. The next prime is 29204371837. The reversal of 29204371825 is 52817340292.

It can be written as a sum of positive squares in 6 ways, for example, as 2005056 + 29202366769 = 1416^2 + 170887^2 .

It is not a de Polignac number, because 29204371825 - 23 = 29204371817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34357660 + ... + 34358509.

It is an arithmetic number, because the mean of its divisors is an integer number (3195301905).

Almost surely, 229204371825 is an apocalyptic number.

29204371825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29204371825 is a deficient number, since it is larger than the sum of its proper divisors (9139251035).

29204371825 is a wasteful number, since it uses less digits than its factorization.

29204371825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68716196 (or 68716191 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 29204371825 in words is "twenty-nine billion, two hundred four million, three hundred seventy-one thousand, eight hundred twenty-five".

Divisors: 1 5 17 25 85 425 68716169 343580845 1168174873 1717904225 5840874365 29204371825