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9077230921 = 11825202811
BaseRepresentation
bin10000111010000101…
…11000110101001001
3212102121102002220211
420131002320311021
5122042232342141
64100420321121
7440641122043
oct103502706511
925377362824
109077230921
113938950a40
121913b431a1
13b18781175
1462179aa93
15381d84d81
hex21d0b8d49

9077230921 has 4 divisors (see below), whose sum is σ = 9902433744. Its totient is φ = 8252028100.

The previous prime is 9077230891. The next prime is 9077230969. The reversal of 9077230921 is 1290327709.

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 9077230921 - 219 = 9076706633 is a prime.

It is a super-2 number, since 2×90772309212 (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 (9077230021) 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, 412601395 + ... + 412601416.

It is an arithmetic number, because the mean of its divisors is an integer number (2475608436).

Almost surely, 29077230921 is an apocalyptic number.

It is an amenable number.

9077230921 is a deficient number, since it is larger than the sum of its proper divisors (825202823).

9077230921 is a wasteful number, since it uses less digits than its factorization.

9077230921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825202822.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 9077230921 is about 95274.5029952925. The cubic root of 9077230921 is about 2086.0167657491.

The spelling of 9077230921 in words is "nine billion, seventy-seven million, two hundred thirty thousand, nine hundred twenty-one".

Divisors: 1 11 825202811 9077230921