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9223968881 = 88710399063
BaseRepresentation
bin10001001011100101…
…01001100001110001
3212210211112011120002
420211302221201301
5122342314001011
64123141355345
7444402304361
oct104562514161
925724464502
109223968881
113a03765386
121955108b55
13b3ccaa36a
146370769a1
1538ebbcc3b
hex225ca9871

9223968881 has 4 divisors (see below), whose sum is σ = 9234368832. Its totient is φ = 9213568932.

The previous prime is 9223968841. The next prime is 9223968889. The reversal of 9223968881 is 1888693229.

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 a de Polignac number, because none of the positive numbers 2k-9223968881 is a prime.

It is a super-2 number, since 2×92239688812 (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 (9223968889) 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, 5198645 + ... + 5200418.

It is an arithmetic number, because the mean of its divisors is an integer number (2308592208).

Almost surely, 29223968881 is an apocalyptic number.

It is an amenable number.

9223968881 is a deficient number, since it is larger than the sum of its proper divisors (10399951).

9223968881 is a wasteful number, since it uses less digits than its factorization.

9223968881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10399950.

The product of its digits is 2985984, while the sum is 56.

The square root of 9223968881 is about 96041.4956203828. The cubic root of 9223968881 is about 2097.1972345733.

The spelling of 9223968881 in words is "nine billion, two hundred twenty-three million, nine hundred sixty-eight thousand, eight hundred eighty-one".

Divisors: 1 887 10399063 9223968881