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2012927631 = 311134692139
BaseRepresentation
bin111011111111010…
…1101011010001111
312012021200022121020
41313332231122033
513110302141011
6531424005223
7100611413451
oct16776553217
95167608536
102012927631
11943277360
12482160813
13261052650
141514a22d1
15bbab8006
hex77fad68f

2012927631 has 16 divisors (see below), whose sum is σ = 3153118080. Its totient is φ = 1126113120.

The previous prime is 2012927629. The next prime is 2012927669. The reversal of 2012927631 is 1367292102.

It is not a de Polignac number, because 2012927631 - 21 = 2012927629 is a prime.

It is a super-2 number, since 2×20129276312 = 8103755295286544322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 2012927592 and 2012927601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012927611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2345641 + ... + 2346498.

It is an arithmetic number, because the mean of its divisors is an integer number (197069880).

Almost surely, 22012927631 is an apocalyptic number.

2012927631 is a deficient number, since it is larger than the sum of its proper divisors (1140190449).

2012927631 is a wasteful number, since it uses less digits than its factorization.

2012927631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4692166.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 2012927631 is about 44865.6620479404. The cubic root of 2012927631 is about 1262.6298542512.

The spelling of 2012927631 in words is "two billion, twelve million, nine hundred twenty-seven thousand, six hundred thirty-one".

Divisors: 1 3 11 13 33 39 143 429 4692139 14076417 51613529 60997807 154840587 182993421 670975877 2012927631