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30220551523 = 131547421739
BaseRepresentation
bin11100001001010010…
…010000010101100011
32220000010022002012001
4130021102100111203
5443342430122043
621514431144431
72116615310131
oct341122202543
986003262161
1030220551523
11118a8793718
125a34975117
132b07c96866
14166985a751
15bbd19274d
hex709490563

30220551523 has 8 divisors (see below), whose sum is σ = 30506984640. Its totient is φ = 29934963240.

The previous prime is 30220551467. The next prime is 30220551637. The reversal of 30220551523 is 32515502203.

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 30220551523 - 225 = 30186997091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30220551491 and 30220551500.

It is not an unprimeable number, because it can be changed into a prime (30220551923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139213 + ... + 282526.

It is an arithmetic number, because the mean of its divisors is an integer number (3813373080).

Almost surely, 230220551523 is an apocalyptic number.

30220551523 is a deficient number, since it is larger than the sum of its proper divisors (286433117).

30220551523 is a wasteful number, since it uses less digits than its factorization.

30220551523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422417.

The product of its (nonzero) digits is 9000, while the sum is 28.

The spelling of 30220551523 in words is "thirty billion, two hundred twenty million, five hundred fifty-one thousand, five hundred twenty-three".

Divisors: 1 131 547 71657 421739 55247809 230691233 30220551523