Search a number
-
+
102131412210031 = 107954499179533
BaseRepresentation
bin10111001110001101010010…
…100010111001000101101111
3111101121200000201102022211211
4113032031102202321011233
5101341310113011210111
61001114304551255251
730340515414043141
oct2716152242710557
9441550021368754
10102131412210031
112a5a67636a5416
12b55590337a527
1344cac49017079
141b3128853ac91
15bc1a145b8521
hex5ce3528b916f

102131412210031 has 4 divisors (see below), whose sum is σ = 103085911389672. Its totient is φ = 101176913030392.

The previous prime is 102131412210013. The next prime is 102131412210059. The reversal of 102131412210031 is 130012214131201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102131412210031 is a prime.

It is a super-2 number, since 2×1021314122100312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102131412209984 and 102131412210011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102131412210131) 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, 477249589660 + ... + 477249589873.

It is an arithmetic number, because the mean of its divisors is an integer number (25771477847418).

Almost surely, 2102131412210031 is an apocalyptic number.

102131412210031 is a deficient number, since it is larger than the sum of its proper divisors (954499179641).

102131412210031 is an equidigital number, since it uses as much as digits as its factorization.

102131412210031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954499179640.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 102131412210031 its reverse (130012214131201), we get a palindrome (232143626341232).

The spelling of 102131412210031 in words is "one hundred two trillion, one hundred thirty-one billion, four hundred twelve million, two hundred ten thousand, thirty-one".

Divisors: 1 107 954499179533 102131412210031