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31442003030 = 25172376910457
BaseRepresentation
bin11101010010000101…
…101110010001010110
310000011020200020122202
4131102011232101112
51003343123044110
622235543124502
72162106421214
oct352205562126
9100136606582
1031442003030
1112375211279
126115a43732
132c7105c029
141743b71cb4
15c405190a5
hex75216e456

31442003030 has 64 divisors (see below), whose sum is σ = 62617484160. Its totient is φ = 11306532864.

The previous prime is 31442003011. The next prime is 31442003057. The reversal of 31442003030 is 3030024413.

It is a junction number, because it is equal to n+sod(n) for n = 31442002993 and 31442003011.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 3001562 + ... + 3012018.

It is an arithmetic number, because the mean of its divisors is an integer number (978398190).

Almost surely, 231442003030 is an apocalyptic number.

31442003030 is a deficient number, since it is larger than the sum of its proper divisors (31175481130).

31442003030 is a wasteful number, since it uses less digits than its factorization.

31442003030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11273.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 31442003030 its reverse (3030024413), we get a palindrome (34472027443).

The spelling of 31442003030 in words is "thirty-one billion, four hundred forty-two million, three thousand, thirty".

Divisors: 1 2 5 10 17 23 34 46 85 115 170 230 391 769 782 1538 1955 3845 3910 7690 10457 13073 17687 20914 26146 35374 52285 65365 88435 104570 130730 176870 177769 240511 300679 355538 481022 601358 888845 1202555 1503395 1777690 2405110 3006790 4088687 8041433 8177374 16082866 20443435 40207165 40886870 80414330 136704361 184952959 273408722 369905918 683521805 924764795 1367043610 1849529590 3144200303 6288400606 15721001515 31442003030