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11810132357 = 20113587189
BaseRepresentation
bin10101111111111000…
…00101000110000101
31010111001211212220112
422333330011012011
5143141343213412
65231524042405
7565444316522
oct127774050605
933431755815
1011810132357
11501056a271
122357233405
131162a173ca
14800716149
15491c68722
hex2bff05185

11810132357 has 4 divisors (see below), whose sum is σ = 11810739660. Its totient is φ = 11809525056.

The previous prime is 11810132293. The next prime is 11810132387. The reversal of 11810132357 is 75323101811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75323101811 = 223337771757.

It can be written as a sum of positive squares in 2 ways, for example, as 3780897121 + 8029235236 = 61489^2 + 89606^2 .

It is a cyclic number.

It is not a de Polignac number, because 11810132357 - 26 = 11810132293 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 (11810132387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273482 + ... + 313707.

It is an arithmetic number, because the mean of its divisors is an integer number (2952684915).

Almost surely, 211810132357 is an apocalyptic number.

It is an amenable number.

11810132357 is a deficient number, since it is larger than the sum of its proper divisors (607303).

11810132357 is an equidigital number, since it uses as much as digits as its factorization.

11810132357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607302.

The product of its (nonzero) digits is 5040, while the sum is 32.

The spelling of 11810132357 in words is "eleven billion, eight hundred ten million, one hundred thirty-two thousand, three hundred fifty-seven".

Divisors: 1 20113 587189 11810132357