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31425140530 = 2573131434283
BaseRepresentation
bin11101010001000101…
…011001011100110010
310000010001221112122201
4131101011121130302
51003324313444110
622234141453414
72161513200340
oct352105313462
9100101845581
1031425140530
1112366744223
12611027126a
132c6a706a14
141741822990
15c3dcd7b3a
hex751159732

31425140530 has 32 divisors (see below), whose sum is σ = 64852585344. Its totient is φ = 10739903616.

The previous prime is 31425140519. The next prime is 31425140569. The reversal of 31425140530 is 3504152413.

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 15 ways as a sum of consecutive naturals, for example, 695232 + ... + 739051.

It is an arithmetic number, because the mean of its divisors is an integer number (2026643292).

Almost surely, 231425140530 is an apocalyptic number.

31425140530 is an abundant number, since it is smaller than the sum of its proper divisors (33427444814).

31425140530 is a wasteful number, since it uses less digits than its factorization.

31425140530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434610.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 31425140530 its reverse (3504152413), we get a palindrome (34929292943).

The spelling of 31425140530 in words is "thirty-one billion, four hundred twenty-five million, one hundred forty thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 313 626 1565 2191 3130 4382 10955 21910 1434283 2868566 7171415 10039981 14342830 20079962 50199905 100399810 448930579 897861158 2244652895 3142514053 4489305790 6285028106 15712570265 31425140530