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2113012031 = 13672425961
BaseRepresentation
bin111110111110010…
…0000000100111111
312110021000010120212
41331330200010333
513311412341111
6545401103035
7103235206634
oct17574400477
95407003525
102113012031
11994816239
124ab787a7b
132789c56a0
141608b618b
15c578798b
hex7df2013f

2113012031 has 8 divisors (see below), whose sum is σ = 2309515824. Its totient is φ = 1921360320.

The previous prime is 2113012019. The next prime is 2113012037. The reversal of 2113012031 is 1302103112.

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 2113012031 - 230 = 1039270207 is a prime.

It is a super-2 number, since 2×21130120312 = 8929639686301489922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2113011997 and 2113012015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113012037) 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, 1212110 + ... + 1213851.

It is an arithmetic number, because the mean of its divisors is an integer number (288689478).

Almost surely, 22113012031 is an apocalyptic number.

2113012031 is a deficient number, since it is larger than the sum of its proper divisors (196503793).

2113012031 is a wasteful number, since it uses less digits than its factorization.

2113012031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426041.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2113012031 is about 45967.5106025984. The cubic root of 2113012031 is about 1283.2186313556.

Adding to 2113012031 its reverse (1302103112), we get a palindrome (3415115143).

The spelling of 2113012031 in words is "two billion, one hundred thirteen million, twelve thousand, thirty-one".

Divisors: 1 13 67 871 2425961 31537493 162539387 2113012031