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30032542531 is a prime number
BaseRepresentation
bin11011111110000101…
…000011101101000011
32212112000112020100001
4123332011003231003
5443001312330111
621444033340431
72112143254015
oct337605035503
985460466301
1030032542531
1111811650792
1259a1a07717
132aa804a434
14164c8ba1b5
15bab9061c1
hex6fe143b43

30032542531 has 2 divisors, whose sum is σ = 30032542532. Its totient is φ = 30032542530.

The previous prime is 30032542513. The next prime is 30032542541. The reversal of 30032542531 is 13524523003.

Together with previous prime (30032542513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30032542531 - 215 = 30032509763 is a prime.

It is a super-2 number, since 2×300325425312 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30032542531.

It is not a weakly prime, because it can be changed into another prime (30032542511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15016271265 + 15016271266.

It is an arithmetic number, because the mean of its divisors is an integer number (15016271266).

Almost surely, 230032542531 is an apocalyptic number.

30032542531 is a deficient number, since it is larger than the sum of its proper divisors (1).

30032542531 is an equidigital number, since it uses as much as digits as its factorization.

30032542531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 28.

The spelling of 30032542531 in words is "thirty billion, thirty-two million, five hundred forty-two thousand, five hundred thirty-one".