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3131004220301 = 29107965662769
BaseRepresentation
bin101101100011111110011…
…001001111001110001101
3102002022200001211012100102
4231203332121033032031
5402244244040022201
610354210302340445
7442131126520316
oct55437631171615
912068601735312
103131004220301
11aa7940291441
12426986b8a725
1319933878b819
14ab7818cb60d
15566a081e26b
hex2d8fe64f38d

3131004220301 has 4 divisors (see below), whose sum is σ = 3238969883100. Its totient is φ = 3023038557504.

The previous prime is 3131004220273. The next prime is 3131004220303. The reversal of 3131004220301 is 1030224001313.

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

It can be written as a sum of positive squares in 2 ways, for example, as 696699049225 + 2434305171076 = 834685^2 + 1560226^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3131004220301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131004220303) 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, 53982831356 + ... + 53982831413.

It is an arithmetic number, because the mean of its divisors is an integer number (809742470775).

Almost surely, 23131004220301 is an apocalyptic number.

It is an amenable number.

3131004220301 is a deficient number, since it is larger than the sum of its proper divisors (107965662799).

3131004220301 is a wasteful number, since it uses less digits than its factorization.

3131004220301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107965662798.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 3131004220301 its reverse (1030224001313), we get a palindrome (4161228221614).

The spelling of 3131004220301 in words is "three trillion, one hundred thirty-one billion, four million, two hundred twenty thousand, three hundred one".

Divisors: 1 29 107965662769 3131004220301