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1380253 = 7238573
BaseRepresentation
bin101010000111110011101
32121010100111
411100332131
5323132003
645330021
714506030
oct5207635
92533314
101380253
11863006
12566911
13394324
1427d017
151c3e6d
hex150f9d

1380253 has 8 divisors (see below), whose sum is σ = 1646208. Its totient is φ = 1131504.

The previous prime is 1380251. The next prime is 1380259. The reversal of 1380253 is 3520831.

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 1380253 - 21 = 1380251 is a prime.

It is a Duffinian number.

1380253 is a modest number, since divided by 253 gives 138 as remainder.

1380253 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380251) 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, 4126 + ... + 4447.

It is an arithmetic number, because the mean of its divisors is an integer number (205776).

21380253 is an apocalyptic number.

It is an amenable number.

1380253 is a deficient number, since it is larger than the sum of its proper divisors (265955).

1380253 is an equidigital number, since it uses as much as digits as its factorization.

1380253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8603.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1380253 is about 1174.8416914632. The cubic root of 1380253 is about 111.3404314581.

The spelling of 1380253 in words is "one million, three hundred eighty thousand, two hundred fifty-three".

Divisors: 1 7 23 161 8573 60011 197179 1380253