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2012872071 = 37234167437
BaseRepresentation
bin111011111111001…
…1111110110000111
312012021120111101110
41313332133312013
513110243401241
6531422500103
7100611062460
oct16776376607
95167514343
102012872071
11943239641
12482134633
13261033282
14151489d67
15bbaa6816
hex77f9fd87

2012872071 has 16 divisors (see below), whose sum is σ = 3200592384. Its totient is φ = 1100203104.

The previous prime is 2012872033. The next prime is 2012872109. The reversal of 2012872071 is 1702782102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2012872033) and next prime (2012872109).

It is not a de Polignac number, because 2012872071 - 26 = 2012872007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012876071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2083236 + ... + 2084201.

It is an arithmetic number, because the mean of its divisors is an integer number (200037024).

Almost surely, 22012872071 is an apocalyptic number.

2012872071 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2012872071 is a deficient number, since it is larger than the sum of its proper divisors (1187720313).

2012872071 is a wasteful number, since it uses less digits than its factorization.

2012872071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4167470.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 2012872071 is about 44865.0428618986. The cubic root of 2012872071 is about 1262.6182372811.

The spelling of 2012872071 in words is "two billion, twelve million, eight hundred seventy-two thousand, seventy-one".

Divisors: 1 3 7 21 23 69 161 483 4167437 12502311 29172059 87516177 95851051 287553153 670957357 2012872071