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203056244031 = 3178807452083
BaseRepresentation
bin1011110100011100011…
…0000110010100111111
3201102010100010222010210
42331013012012110333
511311324344302111
6233141024003503
720445631411314
oct2750706062477
9642110128123
10203056244031
117912aa57613
123342b160593
13161c0566bb4
149b83d68d0b
1554369280a6
hex2f4718653f

203056244031 has 16 divisors (see below), whose sum is σ = 286700822784. Its totient is φ = 127393090944.

The previous prime is 203056243979. The next prime is 203056244033. The reversal of 203056244031 is 130442650302.

It is not a de Polignac number, because 203056244031 - 26 = 203056243967 is a prime.

It is a super-2 number, since 2×2030562440312 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 203056244031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203056244033) 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, 223116 + ... + 675198.

It is an arithmetic number, because the mean of its divisors is an integer number (17918801424).

Almost surely, 2203056244031 is an apocalyptic number.

203056244031 is a deficient number, since it is larger than the sum of its proper divisors (83644578753).

203056244031 is a wasteful number, since it uses less digits than its factorization.

203056244031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460910.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 203056244031 its reverse (130442650302), we get a palindrome (333498894333).

The spelling of 203056244031 in words is "two hundred three billion, fifty-six million, two hundred forty-four thousand, thirty-one".

Divisors: 1 3 17 51 8807 26421 149719 449157 452083 1356249 7685411 23056233 3981494981 11944484943 67685414677 203056244031