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2270381897 = 7437542797
BaseRepresentation
bin1000011101010011…
…0100011101001001
312212020010100110102
42013110310131021
514122204210042
61013142055145
7110155633130
oct20724643511
95766110412
102270381897
11a65631583
1253441a4b5
132a24a4c54
1417775c917
15d44c0b32
hex87534749

2270381897 has 8 divisors (see below), whose sum is σ = 2655064896. Its totient is φ = 1900784592.

The previous prime is 2270381881. The next prime is 2270381959. The reversal of 2270381897 is 7981830722.

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

It is not a de Polignac number, because 2270381897 - 24 = 2270381881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2270321897) 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, 3771098 + ... + 3771699.

It is an arithmetic number, because the mean of its divisors is an integer number (331883112).

Almost surely, 22270381897 is an apocalyptic number.

It is an amenable number.

2270381897 is a deficient number, since it is larger than the sum of its proper divisors (384682999).

2270381897 is an equidigital number, since it uses as much as digits as its factorization.

2270381897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7542847.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 2270381897 is about 47648.5246046507. The cubic root of 2270381897 is about 1314.3155265264.

The spelling of 2270381897 in words is "two billion, two hundred seventy million, three hundred eighty-one thousand, eight hundred ninety-seven".

Divisors: 1 7 43 301 7542797 52799579 324340271 2270381897