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1392472 = 23199161
BaseRepresentation
bin101010011111101011000
32121202010001
411103331120
5324024342
645502344
714556454
oct5237530
92552101
101392472
11871204
125719b4
13399a63
14283664
151c78b7
hex153f58

1392472 has 16 divisors (see below), whose sum is σ = 2748600. Its totient is φ = 659520.

The previous prime is 1392463. The next prime is 1392473. The reversal of 1392472 is 2742931.

It is a self number, because there is not a number n which added to its sum of digits gives 1392472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4429 + ... + 4732.

21392472 is an apocalyptic number.

It is an amenable number.

1392472 is a deficient number, since it is larger than the sum of its proper divisors (1356128).

1392472 is a wasteful number, since it uses less digits than its factorization.

1392472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9186 (or 9182 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 1392472 is about 1180.0305080802. The cubic root of 1392472 is about 111.6680220622.

The spelling of 1392472 in words is "one million, three hundred ninety-two thousand, four hundred seventy-two".

Divisors: 1 2 4 8 19 38 76 152 9161 18322 36644 73288 174059 348118 696236 1392472