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380245449 = 3126748483
BaseRepresentation
bin10110101010100…
…001010111001001
3222111111110200210
4112222201113021
51234320323244
6101421551333
712265014213
oct2652412711
9874443623
10380245449
11185703041
12a7415549
1360a15b0c
14387015b3
15235b04b9
hex16aa15c9

380245449 has 4 divisors (see below), whose sum is σ = 506993936. Its totient is φ = 253496964.

The previous prime is 380245441. The next prime is 380245451. The reversal of 380245449 is 944542083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 380245449 - 23 = 380245441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380245441) 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, 63374239 + ... + 63374244.

It is an arithmetic number, because the mean of its divisors is an integer number (126748484).

Almost surely, 2380245449 is an apocalyptic number.

It is an amenable number.

380245449 is a deficient number, since it is larger than the sum of its proper divisors (126748487).

380245449 is a wasteful number, since it uses less digits than its factorization.

380245449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126748486.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 380245449 is about 19499.8833073431. The cubic root of 380245449 is about 724.4715603851.

The spelling of 380245449 in words is "three hundred eighty million, two hundred forty-five thousand, four hundred forty-nine".

Divisors: 1 3 126748483 380245449