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11370397 = 31366787
BaseRepresentation
bin101011010111…
…111110011101
3210101200020211
4223113332131
510402323042
61043412421
7165434563
oct53277635
923350224
1011370397
116466825
123984111
13248155c
14171da33
15ee9017
hexad7f9d

11370397 has 4 divisors (see below), whose sum is σ = 11737216. Its totient is φ = 11003580.

The previous prime is 11370389. The next prime is 11370409. The reversal of 11370397 is 79307311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79307311 = 194174069.

It is a cyclic number.

It is not a de Polignac number, because 11370397 - 23 = 11370389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 366787 = 11370397 / (1 + 1 + 3 + 7 + 0 + 3 + 9 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11370377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183363 + ... + 183424.

It is an arithmetic number, because the mean of its divisors is an integer number (2934304).

Almost surely, 211370397 is an apocalyptic number.

It is an amenable number.

11370397 is a deficient number, since it is larger than the sum of its proper divisors (366819).

11370397 is an equidigital number, since it uses as much as digits as its factorization.

11370397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366818.

The product of its (nonzero) digits is 3969, while the sum is 31.

The square root of 11370397 is about 3372.0019276388. The cubic root of 11370397 is about 224.8667326040.

The spelling of 11370397 in words is "eleven million, three hundred seventy thousand, three hundred ninety-seven".

Divisors: 1 31 366787 11370397