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31053133542 = 236617829837
BaseRepresentation
bin11100111010111010…
…010011011011100110
32222011010221122000010
4130322322103123212
51002044100233132
622133212231050
72146345165014
oct347272233346
988133848003
1031053133542
1112195758932
12602776b486
132c0b616a42
1417082678b4
15c1b3036cc
hex73ae936e6

31053133542 has 16 divisors (see below), whose sum is σ = 62200233072. Its totient is φ = 10335383520.

The previous prime is 31053133511. The next prime is 31053133549. The reversal of 31053133542 is 24533135013.

It is a super-3 number, since 3×310531335423 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31053133549) 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, 3910953 + ... + 3918884.

It is an arithmetic number, because the mean of its divisors is an integer number (3887514567).

Almost surely, 231053133542 is an apocalyptic number.

31053133542 is an abundant number, since it is smaller than the sum of its proper divisors (31147099530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31053133542 is a wasteful number, since it uses less digits than its factorization.

31053133542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7830503.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 31053133542 its reverse (24533135013), we get a palindrome (55586268555).

The spelling of 31053133542 in words is "thirty-one billion, fifty-three million, one hundred thirty-three thousand, five hundred forty-two".

Divisors: 1 2 3 6 661 1322 1983 3966 7829837 15659674 23489511 46979022 5175522257 10351044514 15526566771 31053133542