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1420379 = 83109157
BaseRepresentation
bin101011010110001011011
32200011101122
411122301123
5330423004
650235455
715034022
oct5326133
92604348
101420379
11890174
12585b8b
133a967c
1428d8b9
151d0cbe
hex15ac5b

1420379 has 8 divisors (see below), whose sum is σ = 1459920. Its totient is φ = 1381536.

The previous prime is 1420373. The next prime is 1420399. The reversal of 1420379 is 9730241.

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 1420379 - 28 = 1420123 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 (1420373) 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, 8969 + ... + 9125.

It is an arithmetic number, because the mean of its divisors is an integer number (182490).

21420379 is an apocalyptic number.

1420379 is a deficient number, since it is larger than the sum of its proper divisors (39541).

1420379 is a wasteful number, since it uses less digits than its factorization.

1420379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1420379 is about 1191.7965430391. The cubic root of 1420379 is about 112.4090853967.

The spelling of 1420379 in words is "one million, four hundred twenty thousand, three hundred seventy-nine".

Divisors: 1 83 109 157 9047 13031 17113 1420379