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57388737400206 = 2311017438681507
BaseRepresentation
bin11010000110001110110110…
…10011101000110110001110
321112012022100210010021002020
431003013123103220312032
530010224113233301311
6322020004430311010
715042125261156412
oct1503073323506616
9245168323107066
1057388737400206
1117316477160913
12652a3a4058466
13260397222a8b4
1410258b5cd6d42
15697c2d0e5c06
hex3431db4e8d8e

57388737400206 has 16 divisors (see below), whose sum is σ = 114777592199424. Its totient is φ = 19129559566904.

The previous prime is 57388737400201. The next prime is 57388737400243. The reversal of 57388737400206 is 60200473788375.

It is a self number, because there is not a number n which added to its sum of digits gives 57388737400206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57388737400201) 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, 2269705 + ... + 10951211.

It is an arithmetic number, because the mean of its divisors is an integer number (7173599512464).

Almost surely, 257388737400206 is an apocalyptic number.

57388737400206 is an abundant number, since it is smaller than the sum of its proper divisors (57388854799218).

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

57388737400206 is a wasteful number, since it uses less digits than its factorization.

57388737400206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9783255.

The product of its (nonzero) digits is 47416320, while the sum is 60.

The spelling of 57388737400206 in words is "fifty-seven trillion, three hundred eighty-eight billion, seven hundred thirty-seven million, four hundred thousand, two hundred six".

Divisors: 1 2 3 6 1101743 2203486 3305229 6610458 8681507 17363014 26044521 52089042 9564789566701 19129579133402 28694368700103 57388737400206