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2198931553 = 71346735171
BaseRepresentation
bin1000001100010001…
…0000100001100001
312200020200022000101
42003010100201201
514000411302203
61002110422401
7105330416110
oct20304204141
95606608011
102198931553
11a2926a905
12514501a01
13290749240
1416c07dc77
15cd0aa41d
hex83110861

2198931553 has 16 divisors (see below), whose sum is σ = 2707479936. Its totient is φ = 1739105280.

The previous prime is 2198931529. The next prime is 2198931563. The reversal of 2198931553 is 3551398912.

It is a cyclic number.

It is not a de Polignac number, because 2198931553 - 217 = 2198800481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2198931563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422658 + ... + 427828.

It is an arithmetic number, because the mean of its divisors is an integer number (169217496).

Almost surely, 22198931553 is an apocalyptic number.

It is an amenable number.

2198931553 is a deficient number, since it is larger than the sum of its proper divisors (508548383).

2198931553 is a wasteful number, since it uses less digits than its factorization.

2198931553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9864.

The product of its digits is 291600, while the sum is 46.

The square root of 2198931553 is about 46892.7665317371. The cubic root of 2198931553 is about 1300.3808653288.

The spelling of 2198931553 in words is "two billion, one hundred ninety-eight million, nine hundred thirty-one thousand, five hundred fifty-three".

Divisors: 1 7 13 91 4673 5171 32711 36197 60749 67223 425243 470561 24164083 169148581 314133079 2198931553