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30740521451 = 671074287979
BaseRepresentation
bin11100101000010001…
…110010000111101011
32221100100201021211112
4130220101302013223
51000424033141301
622042204020535
72135531056343
oct345021620753
987310637745
1030740521451
111204524a832
125b5ab3174b
132b8b921483
1416b892dd23
15bedb529bb
hex7284721eb

30740521451 has 8 divisors (see below), whose sum is σ = 31490925120. Its totient is φ = 29998694088.

The previous prime is 30740521429. The next prime is 30740521457. The reversal of 30740521451 is 15412504703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30740521451 - 26 = 30740521387 is a prime.

It is a super-2 number, since 2×307405214512 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30740521457) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2136821 + ... + 2151158.

It is an arithmetic number, because the mean of its divisors is an integer number (3936365640).

Almost surely, 230740521451 is an apocalyptic number.

30740521451 is a deficient number, since it is larger than the sum of its proper divisors (750403669).

30740521451 is a wasteful number, since it uses less digits than its factorization.

30740521451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4288153.

The product of its (nonzero) digits is 16800, while the sum is 32.

The spelling of 30740521451 in words is "thirty billion, seven hundred forty million, five hundred twenty-one thousand, four hundred fifty-one".

Divisors: 1 67 107 7169 4287979 287294593 458813753 30740521451