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102431022413 = 271137783483
BaseRepresentation
bin101111101100101011…
…1010101110101001101
3100210101121001002001212
41133121113111311031
53134234320204123
6115020044144205
710254223216256
oct1373127256515
9323347032055
10102431022413
113a493707235
1217a27b38065
13987536a845
144d59c77b2d
1529e788c878
hex17d95d5d4d

102431022413 has 4 divisors (see below), whose sum is σ = 102468808608. Its totient is φ = 102393236220.

The previous prime is 102431022383. The next prime is 102431022427. The reversal of 102431022413 is 314220134201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 314220134201 = 615151149741.

It is a cyclic number.

It is not a de Polignac number, because 102431022413 - 216 = 102430956877 is a prime.

It is a super-2 number, since 2×1024310224132 (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 (102431022613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18889031 + ... + 18894452.

It is an arithmetic number, because the mean of its divisors is an integer number (25617202152).

Almost surely, 2102431022413 is an apocalyptic number.

It is an amenable number.

102431022413 is a deficient number, since it is larger than the sum of its proper divisors (37786195).

102431022413 is an equidigital number, since it uses as much as digits as its factorization.

102431022413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37786194.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 102431022413 its reverse (314220134201), we get a palindrome (416651156614).

The spelling of 102431022413 in words is "one hundred two billion, four hundred thirty-one million, twenty-two thousand, four hundred thirteen".

Divisors: 1 2711 37783483 102431022413