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31442230504 = 2328313887911
BaseRepresentation
bin11101010010000110…
…100101110011101000
310000011021002210200201
4131102012211303220
51003343202334004
622235552041544
72162111356336
oct352206456350
9100137083621
1031442230504
1112375357173
126115b332b4
132c7110b729
141743bd0b56
15c405616a4
hex7521a5ce8

31442230504 has 16 divisors (see below), whose sum is σ = 59162505120. Its totient is φ = 15665562480.

The previous prime is 31442230471. The next prime is 31442230529. The reversal of 31442230504 is 40503224413.

It is a happy number.

It is a super-2 number, since 2×314422305042 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6941692 + ... + 6946219.

It is an arithmetic number, because the mean of its divisors is an integer number (3697656570).

Almost surely, 231442230504 is an apocalyptic number.

It is an amenable number.

31442230504 is a deficient number, since it is larger than the sum of its proper divisors (27720274616).

31442230504 is a wasteful number, since it uses less digits than its factorization.

31442230504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13888200 (or 13888196 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 31442230504 its reverse (40503224413), we get a palindrome (71945454917).

The spelling of 31442230504 in words is "thirty-one billion, four hundred forty-two million, two hundred thirty thousand, five hundred four".

Divisors: 1 2 4 8 283 566 1132 2264 13887911 27775822 55551644 111103288 3930278813 7860557626 15721115252 31442230504