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2203131245 = 57233537753
BaseRepresentation
bin1000001101010001…
…0001110101101101
312200112120122220112
42003110101311231
514003000144440
61002340425405
7105411210110
oct20324216555
95615518815
102203131245
11a30679127
125159a8265
13291589973
1416c854577
15cd639965
hex83511d6d

2203131245 has 32 divisors (see below), whose sum is σ = 3162143232. Its totient is φ = 1440755712.

The previous prime is 2203131241. The next prime is 2203131277. The reversal of 2203131245 is 5421313022.

It is a cyclic number.

It is not a de Polignac number, because 2203131245 - 22 = 2203131241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

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 2203131245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203131241) 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, 280289 + ... + 288041.

It is an arithmetic number, because the mean of its divisors is an integer number (98816976).

Almost surely, 22203131245 is an apocalyptic number.

It is an amenable number.

2203131245 is a deficient number, since it is larger than the sum of its proper divisors (959011987).

2203131245 is a wasteful number, since it uses less digits than its factorization.

2203131245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8141.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2203131245 is about 46937.5249134421. The cubic root of 2203131245 is about 1301.2081953188.

Adding to 2203131245 its reverse (5421313022), we get a palindrome (7624444267).

The spelling of 2203131245 in words is "two billion, two hundred three million, one hundred thirty-one thousand, two hundred forty-five".

Divisors: 1 5 7 23 35 115 161 353 805 1765 2471 7753 8119 12355 38765 40595 54271 56833 178319 271355 284165 891595 1248233 2736809 6241165 13684045 19157663 62946607 95788315 314733035 440626249 2203131245