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9021297923 = 114717449319
BaseRepresentation
bin10000110011011011…
…00001010100000011
3212021201011102021022
420121231201110003
5121433423013143
64051101420055
7436361524061
oct103155412403
925251142238
109021297923
11390a318720
1218b926a62b
13b09cc9411
1461819b031
1537bed7268
hex219b61503

9021297923 has 8 divisors (see below), whose sum is σ = 10050808320. Its totient is φ = 8026686280.

The previous prime is 9021297917. The next prime is 9021297949. The reversal of 9021297923 is 3297921209.

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 9021297923 - 214 = 9021281539 is a prime.

It is a super-2 number, since 2×90212979232 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9021297023) 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, 8724143 + ... + 8725176.

It is an arithmetic number, because the mean of its divisors is an integer number (1256351040).

Almost surely, 29021297923 is an apocalyptic number.

9021297923 is a deficient number, since it is larger than the sum of its proper divisors (1029510397).

9021297923 is a wasteful number, since it uses less digits than its factorization.

9021297923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17449377.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 9021297923 is about 94980.5133856414. The cubic root of 9021297923 is about 2081.7233254757.

The spelling of 9021297923 in words is "nine billion, twenty-one million, two hundred ninety-seven thousand, nine hundred twenty-three".

Divisors: 1 11 47 517 17449319 191942509 820117993 9021297923