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2378930189 = 71265912601
BaseRepresentation
bin1000110111001011…
…1001100000001101
320010210101011201112
42031302321200031
514333001231224
61032020421405
7112644400346
oct21562714015
96123334645
102378930189
111010931509
12564847865
132bbb1c5cc
14187d370cd
15ddcb330e
hex8dcb980d

2378930189 has 8 divisors (see below), whose sum is σ = 2413535040. Its totient is φ = 2344356000.

The previous prime is 2378930179. The next prime is 2378930201. The reversal of 2378930189 is 9810398732.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2378930189 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 (2378930179) 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, 182489 + ... + 195089.

It is an arithmetic number, because the mean of its divisors is an integer number (301691880).

Almost surely, 22378930189 is an apocalyptic number.

It is an amenable number.

2378930189 is a deficient number, since it is larger than the sum of its proper divisors (34604851).

2378930189 is a wasteful number, since it uses less digits than its factorization.

2378930189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15331.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 2378930189 is about 48774.2779444248. The cubic root of 2378930189 is about 1334.9363712561.

The spelling of 2378930189 in words is "two billion, three hundred seventy-eight million, nine hundred thirty thousand, one hundred eighty-nine".

Divisors: 1 71 2659 12601 188789 894671 33506059 2378930189