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10897744855 = 517416151263
BaseRepresentation
bin10100010011000111…
…00110001111010111
31001010111000210112211
422021203212033113
5134304310313410
65001212254251
7534025205614
oct121143461727
931114023484
1010897744855
114692547008
122141771387
1310489a454a
1475549350b
1543bae168a
hex2898e63d7

10897744855 has 32 divisors (see below), whose sum is σ = 14417077248. Its totient is φ = 7873843200.

The previous prime is 10897744849. The next prime is 10897744859. The reversal of 10897744855 is 55844779801.

It is not a de Polignac number, because 10897744855 - 27 = 10897744727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10897744855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10897744859) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186954 + ... + 238216.

It is an arithmetic number, because the mean of its divisors is an integer number (450533664).

Almost surely, 210897744855 is an apocalyptic number.

10897744855 is a deficient number, since it is larger than the sum of its proper divisors (3519332393).

10897744855 is a wasteful number, since it uses less digits than its factorization.

10897744855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51387.

The product of its (nonzero) digits is 11289600, while the sum is 58.

The spelling of 10897744855 in words is "ten billion, eight hundred ninety-seven million, seven hundred forty-four thousand, eight hundred fifty-five".

Divisors: 1 5 17 41 61 85 205 305 697 1037 2501 3485 5185 12505 42517 51263 212585 256315 871471 2101783 3127043 4357355 10508915 15635215 35730311 53159731 128208763 178651555 265798655 641043815 2179548971 10897744855