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961310102231 = 1248977696823
BaseRepresentation
bin11011111110100101000…
…11000001001011010111
310101220022100112222101102
431333102203001023113
5111222230341232411
62013341511420315
7126311106022163
oct15772243011327
93356270488342
10961310102231
11340764545076
1213638498469b
136c86077a4cb
1434755c69ca3
151a014cb7d3b
hexdfd28c12d7

961310102231 has 4 divisors (see below), whose sum is σ = 961317923952. Its totient is φ = 961302280512.

The previous prime is 961310102153. The next prime is 961310102299. The reversal of 961310102231 is 132201013169.

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-961310102231 is a prime.

It is a super-2 number, since 2×9613101022312 (a number of 25 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 = 961310102194 and 961310102203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961310107231) 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, 3723515 + ... + 3973308.

It is an arithmetic number, because the mean of its divisors is an integer number (240329480988).

Almost surely, 2961310102231 is an apocalyptic number.

961310102231 is a deficient number, since it is larger than the sum of its proper divisors (7821721).

961310102231 is a wasteful number, since it uses less digits than its factorization.

961310102231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7821720.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 961310102231 in words is "nine hundred sixty-one billion, three hundred ten million, one hundred two thousand, two hundred thirty-one".

Divisors: 1 124897 7696823 961310102231