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2040215412 = 223170017951
BaseRepresentation
bin111100110011011…
…0011011101110100
312021012000200101210
41321212303131310
513134243343122
6534240521420
7101362354614
oct17146633564
95235020353
102040215412
11957715044
1248b320270
132668b7c71
14154d66a44
15be1a840c
hex799b3774

2040215412 has 12 divisors (see below), whose sum is σ = 4760502656. Its totient is φ = 680071800.

The previous prime is 2040215389. The next prime is 2040215423. The reversal of 2040215412 is 2145120402.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 85008964 + ... + 85008987.

Almost surely, 22040215412 is an apocalyptic number.

It is an amenable number.

2040215412 is an abundant number, since it is smaller than the sum of its proper divisors (2720287244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2040215412 is a wasteful number, since it uses less digits than its factorization.

2040215412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170017958 (or 170017956 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2040215412 is about 45168.7437505185. The cubic root of 2040215412 is about 1268.3097799520.

Adding to 2040215412 its reverse (2145120402), we get a palindrome (4185335814).

The spelling of 2040215412 in words is "two billion, forty million, two hundred fifteen thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 170017951 340035902 510053853 680071804 1020107706 2040215412