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311921296341 = 3103973765447
BaseRepresentation
bin1001000100111111111…
…01010100001111010101
31002211010022221121222020
410202133331110033111
520102303322440331
6355143351523353
731351462162344
oct4423775241725
91084108847866
10311921296341
11110315492726
1250551989559
132354c898105
1411150513b5b
1581a9084c96
hex489ff543d5

311921296341 has 4 divisors (see below), whose sum is σ = 415895061792. Its totient is φ = 207947530892.

The previous prime is 311921296303. The next prime is 311921296373. The reversal of 311921296341 is 143692129113.

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.

It is a cyclic number.

It is not a de Polignac number, because 311921296341 - 230 = 310847554517 is a prime.

It is a super-2 number, since 2×3119212963412 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311921296293 and 311921296302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311921296381) 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, 51986882721 + ... + 51986882726.

It is an arithmetic number, because the mean of its divisors is an integer number (103973765448).

Almost surely, 2311921296341 is an apocalyptic number.

It is an amenable number.

311921296341 is a deficient number, since it is larger than the sum of its proper divisors (103973765451).

311921296341 is a wasteful number, since it uses less digits than its factorization.

311921296341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103973765450.

The product of its digits is 69984, while the sum is 42.

The spelling of 311921296341 in words is "three hundred eleven billion, nine hundred twenty-one million, two hundred ninety-six thousand, three hundred forty-one".

Divisors: 1 3 103973765447 311921296341