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1397272 = 23174659
BaseRepresentation
bin101010101001000011000
32121222200211
411111020120
5324203042
645540504
714606452
oct5251030
92558624
101397272
11874878
12574734
1339bcb6
142852d2
151c9017
hex155218

1397272 has 8 divisors (see below), whose sum is σ = 2619900. Its totient is φ = 698632.

The previous prime is 1397267. The next prime is 1397287. The reversal of 1397272 is 2727931.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87322 + ... + 87337.

21397272 is an apocalyptic number.

It is an amenable number.

1397272 is a deficient number, since it is larger than the sum of its proper divisors (1222628).

1397272 is a wasteful number, since it uses less digits than its factorization.

1397272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174665 (or 174661 counting only the distinct ones).

The product of its digits is 5292, while the sum is 31.

The square root of 1397272 is about 1182.0626040951. The cubic root of 1397272 is about 111.7961854513.

The spelling of 1397272 in words is "one million, three hundred ninety-seven thousand, two hundred seventy-two".

Divisors: 1 2 4 8 174659 349318 698636 1397272