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3100393 = 30710099
BaseRepresentation
bin1011110100111011101001
312211111221101
423310323221
51243203033
6150241401
735232022
oct13647351
95744841
103100393
11182840a
121056261
1384726a
145a9c49
1541397d
hex2f4ee9

3100393 has 4 divisors (see below), whose sum is σ = 3110800. Its totient is φ = 3089988.

The previous prime is 3100373. The next prime is 3100421. The reversal of 3100393 is 3930013.

It is a happy number.

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: 3930013 = 7949747.

It is a cyclic number.

It is not a de Polignac number, because 3100393 - 221 = 1003241 is a prime.

It is a super-2 number, since 2×31003932 = 19224873508898, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3100393.

It is not an unprimeable number, because it can be changed into a prime (3100313) 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, 4743 + ... + 5356.

It is an arithmetic number, because the mean of its divisors is an integer number (777700).

Almost surely, 23100393 is an apocalyptic number.

It is an amenable number.

3100393 is a deficient number, since it is larger than the sum of its proper divisors (10407).

3100393 is a wasteful number, since it uses less digits than its factorization.

3100393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10406.

The product of its (nonzero) digits is 243, while the sum is 19.

The square root of 3100393 is about 1760.7932871294. The cubic root of 3100393 is about 145.8161349696.

The spelling of 3100393 in words is "three million, one hundred thousand, three hundred ninety-three".

Divisors: 1 307 10099 3100393