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203013250431 = 385427792151
BaseRepresentation
bin1011110100010010001…
…0000101110101111111
3201102000100020200000020
42331010202011311333
511311232343003211
6233132450303223
720444600104455
oct2750442056577
9642010220006
10203013250431
1179108761912
1233418887b13
13161b46928b4
149b7c3769d5
155432c84306
hex2f44885d7f

203013250431 has 8 divisors (see below), whose sum is σ = 270687844224. Its totient is φ = 135340411800.

The previous prime is 203013250369. The next prime is 203013250441. The reversal of 203013250431 is 134052310302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 203013250431 - 26 = 203013250367 is a prime.

It is a super-2 number, since 2×2030132504312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203013250441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139795 + ... + 652356.

It is an arithmetic number, because the mean of its divisors is an integer number (33835980528).

Almost surely, 2203013250431 is an apocalyptic number.

203013250431 is a deficient number, since it is larger than the sum of its proper divisors (67674593793).

203013250431 is an equidigital number, since it uses as much as digits as its factorization.

203013250431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877581.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 203013250431 its reverse (134052310302), we get a palindrome (337065560733).

The spelling of 203013250431 in words is "two hundred three billion, thirteen million, two hundred fifty thousand, four hundred thirty-one".

Divisors: 1 3 85427 256281 792151 2376453 67671083477 203013250431