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1393115 = 5278623
BaseRepresentation
bin101010100000111011011
32121202222212
411110013123
5324034430
645505335
714561363
oct5240733
92552885
101393115
11871739
1257224b
1339a139
142839a3
151c7b95
hex1541db

1393115 has 4 divisors (see below), whose sum is σ = 1671744. Its totient is φ = 1114488.

The previous prime is 1393103. The next prime is 1393121. The reversal of 1393115 is 5113931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1393115 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139307 + ... + 139316.

It is an arithmetic number, because the mean of its divisors is an integer number (417936).

21393115 is an apocalyptic number.

1393115 is a deficient number, since it is larger than the sum of its proper divisors (278629).

1393115 is an equidigital number, since it uses as much as digits as its factorization.

1393115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278628.

The product of its digits is 405, while the sum is 23.

The square root of 1393115 is about 1180.3029272183. The cubic root of 1393115 is about 111.6852076834.

The spelling of 1393115 in words is "one million, three hundred ninety-three thousand, one hundred fifteen".

Divisors: 1 5 278623 1393115