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19301097 = 36433699
BaseRepresentation
bin100100110100…
…0001011101001
31100022121010110
41021220023221
514420113342
61525404533
7323025264
oct111501351
940277113
1019301097
11a993222
126569749
133cca28a
1427c5cdb
151a63c9c
hex12682e9

19301097 has 4 divisors (see below), whose sum is σ = 25734800. Its totient is φ = 12867396.

The previous prime is 19301089. The next prime is 19301099. The reversal of 19301097 is 79010391.

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.

It is not a de Polignac number, because 19301097 - 23 = 19301089 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (19301099) 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 in 3 ways as a sum of consecutive naturals, for example, 3216847 + ... + 3216852.

It is an arithmetic number, because the mean of its divisors is an integer number (6433700).

Almost surely, 219301097 is an apocalyptic number.

It is an amenable number.

19301097 is a deficient number, since it is larger than the sum of its proper divisors (6433703).

19301097 is an equidigital number, since it uses as much as digits as its factorization.

19301097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6433702.

The product of its (nonzero) digits is 1701, while the sum is 30.

The square root of 19301097 is about 4393.3013782348. The cubic root of 19301097 is about 268.2423413130.

The spelling of 19301097 in words is "nineteen million, three hundred one thousand, ninety-seven".

Divisors: 1 3 6433699 19301097