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2381980990 = 25238198099
BaseRepresentation
bin1000110111111010…
…0010010100111110
320011000010011122011
42031332202110332
514334241342430
61032210041434
7113012334664
oct21576422476
96130104564
102381980990
111012625634
1256587927a
132bc64a10c
141884ccc34
15de1b722a
hex8dfa253e

2381980990 has 8 divisors (see below), whose sum is σ = 4287565800. Its totient is φ = 952792392.

The previous prime is 2381980973. The next prime is 2381981003. The reversal of 2381980990 is 990891832.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119099040 + ... + 119099059.

It is an arithmetic number, because the mean of its divisors is an integer number (535945725).

Almost surely, 22381980990 is an apocalyptic number.

2381980990 is a deficient number, since it is larger than the sum of its proper divisors (1905584810).

2381980990 is a wasteful number, since it uses less digits than its factorization.

2381980990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238198106.

The product of its (nonzero) digits is 279936, while the sum is 49.

The square root of 2381980990 is about 48805.5426155678. The cubic root of 2381980990 is about 1335.5067796870.

The spelling of 2381980990 in words is "two billion, three hundred eighty-one million, nine hundred eighty thousand, nine hundred ninety".

Divisors: 1 2 5 10 238198099 476396198 1190990495 2381980990