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8940021323 = 18149392383
BaseRepresentation
bin10000101001101110…
…11110011001001011
3212002001020010201212
420110313132121023
5121302121140243
64035035403335
7434353633052
oct102467363113
925061203655
108940021323
113878455382
121895bb354b
13ac620cc5c
1460b481399
15374cd0318
hex214dde64b

8940021323 has 4 divisors (see below), whose sum is σ = 8989413888. Its totient is φ = 8890628760.

The previous prime is 8940021301. The next prime is 8940021367. The reversal of 8940021323 is 3231200498.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8940021323 - 212 = 8940017227 is a prime.

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 8940021323.

It is not an unprimeable number, because it can be changed into a prime (8940021373) 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, 24696011 + ... + 24696372.

It is an arithmetic number, because the mean of its divisors is an integer number (2247353472).

Almost surely, 28940021323 is an apocalyptic number.

8940021323 is a deficient number, since it is larger than the sum of its proper divisors (49392565).

8940021323 is a wasteful number, since it uses less digits than its factorization.

8940021323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49392564.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 8940021323 is about 94551.6859870833. The cubic root of 8940021323 is about 2075.4527543904.

The spelling of 8940021323 in words is "eight billion, nine hundred forty million, twenty-one thousand, three hundred twenty-three".

Divisors: 1 181 49392383 8940021323