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231035204525 = 529241408181
BaseRepresentation
bin1101011100101011000…
…1010111001110101101
3211002100020111102111212
43113022301113032231
512241130003021100
6254045222124205
722456160556566
oct3271261271655
9732306442455
10231035204525
1189a88393764
1238939280665
1318a2bcc9318
14b279bdd16d
156022dd5635
hex35cac573ad

231035204525 has 6 divisors (see below), whose sum is σ = 286483653642. Its totient is φ = 184828163600.

The previous prime is 231035204497. The next prime is 231035204537. The reversal of 231035204525 is 525402530132.

It can be written as a sum of positive squares in 3 ways, for example, as 73290401284 + 157744803241 = 270722^2 + 397171^2 .

It is not a de Polignac number, because 231035204525 - 28 = 231035204269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231035204491 and 231035204500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4620704066 + ... + 4620704115.

It is an arithmetic number, because the mean of its divisors is an integer number (47747275607).

Almost surely, 2231035204525 is an apocalyptic number.

231035204525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231035204525 is a deficient number, since it is larger than the sum of its proper divisors (55448449117).

231035204525 is an equidigital number, since it uses as much as digits as its factorization.

231035204525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9241408191 (or 9241408186 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 231035204525 its reverse (525402530132), we get a palindrome (756437734657).

The spelling of 231035204525 in words is "two hundred thirty-one billion, thirty-five million, two hundred four thousand, five hundred twenty-five".

Divisors: 1 5 25 9241408181 46207040905 231035204525