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13520254045 = 52840395203
BaseRepresentation
bin11001001011101111…
…01011010001011101
31021220020202001211211
430211313223101131
5210142141112140
610113333544421
7656021156164
oct144567532135
937806661754
1013520254045
115808915a81
122753aa5111
1313760c8a2c
149238b43db
15541e6b2ea
hex325deb45d

13520254045 has 8 divisors (see below), whose sum is σ = 16225046496. Its totient is φ = 10815708816.

The previous prime is 13520254039. The next prime is 13520254081. The reversal of 13520254045 is 54045202531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13520254045 - 29 = 13520253533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13520253998 and 13520254016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94414 + ... + 189616.

It is an arithmetic number, because the mean of its divisors is an integer number (2028130812).

Almost surely, 213520254045 is an apocalyptic number.

It is an amenable number.

13520254045 is a deficient number, since it is larger than the sum of its proper divisors (2704792451).

13520254045 is an equidigital number, since it uses as much as digits as its factorization.

13520254045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123611.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 13520254045 its reverse (54045202531), we get a palindrome (67565456576).

The spelling of 13520254045 in words is "thirteen billion, five hundred twenty million, two hundred fifty-four thousand, forty-five".

Divisors: 1 5 28403 95203 142015 476015 2704050809 13520254045