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13525442142 = 232254240357
BaseRepresentation
bin11001001100010110…
…11101111001011110
31021220121111122120120
430212023131321132
5210200003122032
610114041055410
7656113234632
oct144613357136
937817448516
1013525442142
115810839963
122755787566
1313771c4304
14924464dc2
1554264362c
hex3262dde5e

13525442142 has 8 divisors (see below), whose sum is σ = 27050884296. Its totient is φ = 4508480712.

The previous prime is 13525442137. The next prime is 13525442143. The reversal of 13525442142 is 24124452531.

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

13525442142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13525442143) 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, 1127120173 + ... + 1127120184.

It is an arithmetic number, because the mean of its divisors is an integer number (3381360537).

Almost surely, 213525442142 is an apocalyptic number.

13525442142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13525442142 is a wasteful number, since it uses less digits than its factorization.

13525442142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2254240362.

The product of its digits is 38400, while the sum is 33.

Adding to 13525442142 its reverse (24124452531), we get a palindrome (37649894673).

The spelling of 13525442142 in words is "thirteen billion, five hundred twenty-five million, four hundred forty-two thousand, one hundred forty-two".

Divisors: 1 2 3 6 2254240357 4508480714 6762721071 13525442142