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9380678821 = 173271200087
BaseRepresentation
bin10001011110010000…
…11100110010100101
3220012202101212011221
420233020130302211
5123202423210241
64150500300341
7451314311563
oct105710346245
926182355157
109380678821
113a8416a928
1219996a16b1
13b665b8437
1464dbcaa33
1539d8255d1
hex22f21cca5

9380678821 has 8 divisors (see below), whose sum is σ = 9469764864. Its totient is φ = 9291993840.

The previous prime is 9380678809. The next prime is 9380678831. The reversal of 9380678821 is 1288760839.

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 9380678821 - 217 = 9380547749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9380678831) 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, 53161 + ... + 146926.

It is an arithmetic number, because the mean of its divisors is an integer number (1183720608).

Almost surely, 29380678821 is an apocalyptic number.

It is an amenable number.

9380678821 is a deficient number, since it is larger than the sum of its proper divisors (89086043).

9380678821 is a wasteful number, since it uses less digits than its factorization.

9380678821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200531.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 9380678821 is about 96853.9045211911. The cubic root of 9380678821 is about 2109.0073287078.

The spelling of 9380678821 in words is "nine billion, three hundred eighty million, six hundred seventy-eight thousand, eight hundred twenty-one".

Divisors: 1 173 271 46883 200087 34615051 54223577 9380678821