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2315388 = 223192949
BaseRepresentation
bin1000110101010001111100
311100122010010
420311101330
51043043023
6121343220
725452255
oct10652174
94318103
102315388
111341649
12937b10
13630b6a
14443b2c
1530b093
hex23547c

2315388 has 12 divisors (see below), whose sum is σ = 5402600. Its totient is φ = 771792.

The previous prime is 2315371. The next prime is 2315399. The reversal of 2315388 is 8835132.

It is a happy number.

2315388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×23153882 = 10722043181088, which contains 22 as substring.

It is a d-powerful number, because it can be written as 213 + 3 + 1 + 53 + 311 + 85 + 87 .

It is a congruent 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, 96463 + ... + 96486.

22315388 is an apocalyptic number.

It is an amenable number.

2315388 is an abundant number, since it is smaller than the sum of its proper divisors (3087212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2315388 is a wasteful number, since it uses less digits than its factorization.

2315388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192956 (or 192954 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 2315388 is about 1521.6399048395. The cubic root of 2315388 is about 132.2943385935.

The spelling of 2315388 in words is "two million, three hundred fifteen thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 12 192949 385898 578847 771796 1157694 2315388