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31033411055 = 56206682211
BaseRepresentation
bin11100111001101111…
…000100010111101111
32222002202211121211122
4130321233010113233
51002024023123210
622131225411155
72146015433033
oct347157042757
988082747748
1031033411055
1112185608059
126021039abb
132c074cca2a
1417057b21c3
15c19709b55
hex739bc45ef

31033411055 has 4 divisors (see below), whose sum is σ = 37240093272. Its totient is φ = 24826728840.

The previous prime is 31033411051. The next prime is 31033411093. The reversal of 31033411055 is 55011433013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55011433013 = 172999317987.

It is not a de Polignac number, because 31033411055 - 22 = 31033411051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31033411051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3103341101 + ... + 3103341110.

It is an arithmetic number, because the mean of its divisors is an integer number (9310023318).

Almost surely, 231033411055 is an apocalyptic number.

31033411055 is a deficient number, since it is larger than the sum of its proper divisors (6206682217).

31033411055 is an equidigital number, since it uses as much as digits as its factorization.

31033411055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6206682216.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 31033411055 its reverse (55011433013), we get a palindrome (86044844068).

The spelling of 31033411055 in words is "thirty-one billion, thirty-three million, four hundred eleven thousand, fifty-five".

Divisors: 1 5 6206682211 31033411055