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23803525 = 52952141
BaseRepresentation
bin101101011001…
…1011010000101
31122210100022001
41122303122011
522043203100
62210105301
7406220014
oct132633205
948710261
1023803525
1112488a39
127b7b231
134c15735
143238a7b
152152d6a
hex16b3685

23803525 has 6 divisors (see below), whose sum is σ = 29516402. Its totient is φ = 19042800.

The previous prime is 23803501. The next prime is 23803537. The reversal of 23803525 is 52530832.

It can be written as a sum of positive squares in 3 ways, for example, as 4169764 + 19633761 = 2042^2 + 4431^2 .

It is not a de Polignac number, because 23803525 - 27 = 23803397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23803493 and 23803502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 476046 + ... + 476095.

Almost surely, 223803525 is an apocalyptic number.

23803525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23803525 is a deficient number, since it is larger than the sum of its proper divisors (5712877).

23803525 is an equidigital number, since it uses as much as digits as its factorization.

23803525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952151 (or 952146 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 23803525 is about 4878.8856309612. The cubic root of 23803525 is about 287.6606285753.

The spelling of 23803525 in words is "twenty-three million, eight hundred three thousand, five hundred twenty-five".

Divisors: 1 5 25 952141 4760705 23803525