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30027525057 = 3217350937889
BaseRepresentation
bin11011111101110001…
…111010101111000001
32212111200002022122200
4123331301322233001
5442444021300212
621443334023413
72112052515555
oct337561725701
985450068580
1030027525057
1111809834012
1259a01a7b69
132aa6cb170a
14164bd71865
15bab2646dc
hex6fdc7abc1

30027525057 has 24 divisors (see below), whose sum is σ = 43710661800. Its totient is φ = 19863011328.

The previous prime is 30027525053. The next prime is 30027525061. The reversal of 30027525057 is 75052572003.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30027525053) and next prime (30027525061).

It can be written as a sum of positive squares in 4 ways, for example, as 11146291776 + 18881233281 = 105576^2 + 137409^2 .

It is not a de Polignac number, because 30027525057 - 22 = 30027525053 is a prime.

It is a super-2 number, since 2×300275250572 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30027525053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 773569 + ... + 811457.

It is an arithmetic number, because the mean of its divisors is an integer number (1821277575).

Almost surely, 230027525057 is an apocalyptic number.

It is an amenable number.

30027525057 is a deficient number, since it is larger than the sum of its proper divisors (13683136743).

30027525057 is a wasteful number, since it uses less digits than its factorization.

30027525057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38577 (or 38574 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 36.

The spelling of 30027525057 in words is "thirty billion, twenty-seven million, five hundred twenty-five thousand, fifty-seven".

Divisors: 1 3 9 173 509 519 1527 1557 4581 37889 88057 113667 264171 341001 792513 6554797 19285501 19664391 57856503 58993173 173569509 3336391673 10009175019 30027525057