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10194913 = 43237091
BaseRepresentation
bin100110111000…
…111111100001
3201011221210101
4212320333201
510102214123
61002302401
7152440531
oct46707741
921157711
1010194913
115833653
1234b7a01
13215c4c1
1414d54c1
15d65aad
hex9b8fe1

10194913 has 4 divisors (see below), whose sum is σ = 10432048. Its totient is φ = 9957780.

The previous prime is 10194907. The next prime is 10194923. The reversal of 10194913 is 31949101.

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: 31949101 = 79404419.

It is a cyclic number.

It is not a de Polignac number, because 10194913 - 25 = 10194881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10194923) 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, 118503 + ... + 118588.

It is an arithmetic number, because the mean of its divisors is an integer number (2608012).

Almost surely, 210194913 is an apocalyptic number.

It is an amenable number.

10194913 is a deficient number, since it is larger than the sum of its proper divisors (237135).

10194913 is an equidigital number, since it uses as much as digits as its factorization.

10194913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237134.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 10194913 is about 3192.9473844710. The cubic root of 10194913 is about 216.8342296162.

The spelling of 10194913 in words is "ten million, one hundred ninety-four thousand, nine hundred thirteen".

Divisors: 1 43 237091 10194913