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2012152531 = 4164775853
BaseRepresentation
bin111011111101111…
…0000001011010011
312012020012221100211
41313323300023103
513110102340111
6531355224551
7100602004624
oct16773601323
95166187324
102012152531
11942897a84
12481a48157
13260b408cc
1415133da4b
15bb9b3521
hex77ef02d3

2012152531 has 8 divisors (see below), whose sum is σ = 2064442464. Its totient is φ = 1960015680.

The previous prime is 2012152529. The next prime is 2012152543. The reversal of 2012152531 is 1352512102.

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 2012152531 - 21 = 2012152529 is a prime.

It is a super-2 number, since 2×20121525312 = 8097515616019411922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012152591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11400 + ... + 64453.

It is an arithmetic number, because the mean of its divisors is an integer number (258055308).

Almost surely, 22012152531 is an apocalyptic number.

2012152531 is a deficient number, since it is larger than the sum of its proper divisors (52289933).

2012152531 is an equidigital number, since it uses as much as digits as its factorization.

2012152531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76541.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2012152531 is about 44857.0232070743. The cubic root of 2012152531 is about 1262.4677702585.

Adding to 2012152531 its reverse (1352512102), we get a palindrome (3364664633).

The spelling of 2012152531 in words is "two billion, twelve million, one hundred fifty-two thousand, five hundred thirty-one".

Divisors: 1 41 647 26527 75853 3109973 49076891 2012152531