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9020164457 = 31290973047
BaseRepresentation
bin10000110011010010…
…01100100101101001
3212021122000211110002
420121221030211221
5121433130230312
64051021232345
7436346063363
oct103151144551
925248024402
109020164457
113909714077
1218b8a026b5
13b099c0525
14617d83d33
1537bd614c2
hex219a4c969

9020164457 has 4 divisors (see below), whose sum is σ = 9311137536. Its totient is φ = 8729191380.

The previous prime is 9020164441. The next prime is 9020164477. The reversal of 9020164457 is 7544610209.

9020164457 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9020164457 - 24 = 9020164441 is a prime.

It is a super-2 number, since 2×90201644572 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9020164457.

It is not an unprimeable number, because it can be changed into a prime (9020164477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145486493 + ... + 145486554.

It is an arithmetic number, because the mean of its divisors is an integer number (2327784384).

Almost surely, 29020164457 is an apocalyptic number.

It is an amenable number.

9020164457 is a deficient number, since it is larger than the sum of its proper divisors (290973079).

9020164457 is a wasteful number, since it uses less digits than its factorization.

9020164457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290973078.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 9020164457 is about 94974.5463637495. The cubic root of 9020164457 is about 2081.6361369336.

The spelling of 9020164457 in words is "nine billion, twenty million, one hundred sixty-four thousand, four hundred fifty-seven".

Divisors: 1 31 290973047 9020164457