Search a number
-
+
107638433 = 715376919
BaseRepresentation
bin1100110101001…
…10111010100001
321111112121011122
412122212322201
5210023412213
614403022025
72444624450
oct632467241
9244477148
10107638433
1155839391
123006a915
13193b94a6
141041cb97
1596b2d08
hex66a6ea1

107638433 has 4 divisors (see below), whose sum is σ = 123015360. Its totient is φ = 92261508.

The previous prime is 107638423. The next prime is 107638451. The reversal of 107638433 is 334836701.

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: 334836701 = 2291462169.

It is a cyclic number.

It is not a de Polignac number, because 107638433 - 212 = 107634337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 107638393 and 107638402.

It is not an unprimeable number, because it can be changed into a prime (107638423) 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, 7688453 + ... + 7688466.

It is an arithmetic number, because the mean of its divisors is an integer number (30753840).

Almost surely, 2107638433 is an apocalyptic number.

It is an amenable number.

107638433 is a deficient number, since it is larger than the sum of its proper divisors (15376927).

107638433 is an equidigital number, since it uses as much as digits as its factorization.

107638433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15376926.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 107638433 is about 10374.8943609080. The cubic root of 107638433 is about 475.6882845439.

The spelling of 107638433 in words is "one hundred seven million, six hundred thirty-eight thousand, four hundred thirty-three".

Divisors: 1 7 15376919 107638433