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1396157 = 7228493
BaseRepresentation
bin101010100110110111101
32121221011112
411110312331
5324134112
645531405
714603300
oct5246675
92557145
101396157
11873a54
12573b65
1339b639
14284b37
151c8a22
hex154dbd

1396157 has 6 divisors (see below), whose sum is σ = 1624158. Its totient is φ = 1196664.

The previous prime is 1396141. The next prime is 1396183. The reversal of 1396157 is 7516931.

It can be written as a sum of positive squares in only one way, i.e., 1207801 + 188356 = 1099^2 + 434^2 .

It is not a de Polignac number, because 1396157 - 24 = 1396141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14198 + ... + 14295.

It is an arithmetic number, because the mean of its divisors is an integer number (270693).

21396157 is an apocalyptic number.

It is an amenable number.

1396157 is a deficient number, since it is larger than the sum of its proper divisors (228001).

1396157 is an equidigital number, since it uses as much as digits as its factorization.

1396157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28507 (or 28500 counting only the distinct ones).

The product of its digits is 5670, while the sum is 32.

The square root of 1396157 is about 1181.5908767420. The cubic root of 1396157 is about 111.7664403674.

The spelling of 1396157 in words is "one million, three hundred ninety-six thousand, one hundred fifty-seven".

Divisors: 1 7 49 28493 199451 1396157