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102232020013 = 156347653879
BaseRepresentation
bin101111100110110000…
…0001101010000101101
3100202212201120201002121
41133031200031100231
53133332344120023
6114544214552541
710246255555324
oct1371540152055
9322781521077
10102232020013
113a3a1345842
1217991368751
139843072646
144d3b6750bb
1529d517dd5d
hex17cd80d42d

102232020013 has 4 divisors (see below), whose sum is σ = 102232830240. Its totient is φ = 102231209788.

The previous prime is 102232019963. The next prime is 102232020019. The reversal of 102232020013 is 310020232201.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 310020232201 = 1033009905167.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102232020013 is a prime.

It is a super-3 number, since 3×1022320200133 (a number of 34 digits) contains 333 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 (102232020019) 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, 170593 + ... + 483286.

It is an arithmetic number, because the mean of its divisors is an integer number (25558207560).

Almost surely, 2102232020013 is an apocalyptic number.

It is an amenable number.

102232020013 is a deficient number, since it is larger than the sum of its proper divisors (810227).

102232020013 is an equidigital number, since it uses as much as digits as its factorization.

102232020013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810226.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 102232020013 its reverse (310020232201), we get a palindrome (412252252214).

The spelling of 102232020013 in words is "one hundred two billion, two hundred thirty-two million, twenty thousand, thirteen".

Divisors: 1 156347 653879 102232020013