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30024536621 = 172960901697
BaseRepresentation
bin11011111101100110…
…100001001000101101
32212111110110111021212
4123331212201020231
5442442240132441
621443150004205
72112015231122
oct337546411055
985443414255
1030024536621
1111808082832
12599b1a6665
132aa64a6401
14164b7d4749
15baad73eeb
hex6fd9a122d

30024536621 has 8 divisors (see below), whose sum is σ = 32886916920. Its totient is φ = 27283959808.

The previous prime is 30024536617. The next prime is 30024536653. The reversal of 30024536621 is 12663542003.

It can be written as a sum of positive squares in 4 ways, for example, as 4835672521 + 25188864100 = 69539^2 + 158710^2 .

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 30024536621 - 22 = 30024536617 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30024536681) 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 in 7 ways as a sum of consecutive naturals, for example, 30450356 + ... + 30451341.

It is an arithmetic number, because the mean of its divisors is an integer number (4110864615).

Almost surely, 230024536621 is an apocalyptic number.

It is an amenable number.

30024536621 is a deficient number, since it is larger than the sum of its proper divisors (2862380299).

30024536621 is a wasteful number, since it uses less digits than its factorization.

30024536621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60901743.

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 30024536621 in words is "thirty billion, twenty-four million, five hundred thirty-six thousand, six hundred twenty-one".

Divisors: 1 17 29 493 60901697 1035328849 1766149213 30024536621