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3120404131 = 13452353069
BaseRepresentation
bin1011100111111101…
…1001011010100011
322001110120221202101
42321333121122203
522342310413011
61233345031231
7140216666065
oct27177313243
98043527671
103120404131
111361428899
12731025517
133a96203a0
142185c9735
15133e292c1
hexb9fd96a3

3120404131 has 8 divisors (see below), whose sum is σ = 3361241520. Its totient is φ = 2879681952.

The previous prime is 3120404123. The next prime is 3120404153. The reversal of 3120404131 is 1314040213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3120404131 - 23 = 3120404123 is a prime.

It is a super-2 number, since 2×31204041312 = 19473843881523730322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3120404099 and 3120404108.

It is not an unprimeable number, because it can be changed into a prime (3120404101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32265 + ... + 85333.

It is an arithmetic number, because the mean of its divisors is an integer number (420155190).

Almost surely, 23120404131 is an apocalyptic number.

3120404131 is a deficient number, since it is larger than the sum of its proper divisors (240837389).

3120404131 is a wasteful number, since it uses less digits than its factorization.

3120404131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57605.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3120404131 is about 55860.5776106907. The cubic root of 3120404131 is about 1461.2918026680.

Adding to 3120404131 its reverse (1314040213), we get a palindrome (4434444344).

The spelling of 3120404131 in words is "three billion, one hundred twenty million, four hundred four thousand, one hundred thirty-one".

Divisors: 1 13 4523 53069 58799 689897 240031087 3120404131