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2003231255 = 5400646251
BaseRepresentation
bin111011101100110…
…1110001000010111
312011121102200200012
41313121232020113
513100311400010
6530440110435
7100433120234
oct16731561027
95147380605
102003231255
11938854323
1247aa6541b
1325c03904c
1415009a78b
15bad00005
hex7766e217

2003231255 has 4 divisors (see below), whose sum is σ = 2403877512. Its totient is φ = 1602585000.

The previous prime is 2003231149. The next prime is 2003231291. The reversal of 2003231255 is 5521323002.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2k-2003231255 is a prime.

It is a super-2 number, since 2×20032312552 = 8025870922017750050, which contains 22 as substring.

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 2003231255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200323121 + ... + 200323130.

It is an arithmetic number, because the mean of its divisors is an integer number (600969378).

Almost surely, 22003231255 is an apocalyptic number.

2003231255 is a deficient number, since it is larger than the sum of its proper divisors (400646257).

2003231255 is an equidigital number, since it uses as much as digits as its factorization.

2003231255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400646256.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 2003231255 is about 44757.4714991810. The cubic root of 2003231255 is about 1260.5992058421.

Adding to 2003231255 its reverse (5521323002), we get a palindrome (7524554257).

The spelling of 2003231255 in words is "two billion, three million, two hundred thirty-one thousand, two hundred fifty-five".

Divisors: 1 5 400646251 2003231255