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2131010331 = 32512830027
BaseRepresentation
bin111111100000100…
…1010001100011011
312111111212112121120
41333001022030123
513331014312311
6551242540323
7103544201052
oct17701121433
95444775546
102131010331
119a399966a
124b58076a3
1327c657978
1416303d399
15c7140706
hex7f04a31b

2131010331 has 8 divisors (see below), whose sum is σ = 2852668224. Its totient is φ = 1415013000.

The previous prime is 2131010327. The next prime is 2131010353. The reversal of 2131010331 is 1330101312.

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

It is not a de Polignac number, because 2131010331 - 22 = 2131010327 is a prime.

It is a super-2 number, since 2×21310103312 = 9082410061657459122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2131010331.

It is not an unprimeable number, because it can be changed into a prime (2131010831) 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, 1414261 + ... + 1415766.

It is an arithmetic number, because the mean of its divisors is an integer number (356583528).

Almost surely, 22131010331 is an apocalyptic number.

2131010331 is a deficient number, since it is larger than the sum of its proper divisors (721657893).

2131010331 is a wasteful number, since it uses less digits than its factorization.

2131010331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830281.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 2131010331 is about 46162.8674477659. The cubic root of 2131010331 is about 1286.8517526688.

Adding to 2131010331 its reverse (1330101312), we get a palindrome (3461111643).

The spelling of 2131010331 in words is "two billion, one hundred thirty-one million, ten thousand, three hundred thirty-one".

Divisors: 1 3 251 753 2830027 8490081 710336777 2131010331