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102144002431 = 434386754151
BaseRepresentation
bin101111100100001000…
…0011100100101111111
3100202122120221221200011
41133020100130211333
53133142331034211
6114531352244051
710244136460312
oct1371020344577
9322576857604
10102144002431
113a356698939
12179679a0627
13982aa65b33
144d2dac2979
1529cc594921
hex17c841c97f

102144002431 has 8 divisors (see below), whose sum is σ = 104523757184. Its totient is φ = 99764443800.

The previous prime is 102144002417. The next prime is 102144002447. The reversal of 102144002431 is 134200441201.

It is a happy number.

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 102144002431 - 25 = 102144002399 is a prime.

It is a super-2 number, since 2×1021440024312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102144003431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1859206 + ... + 1913356.

It is an arithmetic number, because the mean of its divisors is an integer number (13065469648).

Almost surely, 2102144002431 is an apocalyptic number.

102144002431 is a deficient number, since it is larger than the sum of its proper divisors (2379754753).

102144002431 is an equidigital number, since it uses as much as digits as its factorization.

102144002431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98061.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 102144002431 its reverse (134200441201), we get a palindrome (236344443632).

The spelling of 102144002431 in words is "one hundred two billion, one hundred forty-four million, two thousand, four hundred thirty-one".

Divisors: 1 43 43867 54151 1886281 2328493 2375441917 102144002431