Search a number
-
+
1400272 = 2487517
BaseRepresentation
bin101010101110111010000
32122010210221
411111313100
5324302042
650002424
714621266
oct5256720
92563727
101400272
11877055
12576414
133a0483
14286436
151c9d67
hex155dd0

1400272 has 10 divisors (see below), whose sum is σ = 2713058. Its totient is φ = 700128.

The previous prime is 1400261. The next prime is 1400279. The reversal of 1400272 is 2720041.

It can be written as a sum of positive squares in only one way, i.e., 876096 + 524176 = 936^2 + 724^2 .

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 87517 = 1400272 / (1 + 4 + 0 + 0 + 2 + 7 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400279) by changing a digit.

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 as a sum of consecutive naturals, namely, 43743 + ... + 43774.

21400272 is an apocalyptic number.

It is an amenable number.

1400272 is a deficient number, since it is larger than the sum of its proper divisors (1312786).

1400272 is an equidigital number, since it uses as much as digits as its factorization.

1400272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87525 (or 87519 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 1400272 is about 1183.3308920163. The cubic root of 1400272 is about 111.8761385817.

The spelling of 1400272 in words is "one million, four hundred thousand, two hundred seventy-two".

Divisors: 1 2 4 8 16 87517 175034 350068 700136 1400272