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107015021 = 234652827
BaseRepresentation
bin1100110000011…
…10101101101101
321110100221000022
412120032231231
5204343440041
614341411525
72436420101
oct630165555
9243327008
10107015021
1155452a73
122ba09ba5
131922b7c9
14102d9901
1595dd24b
hex660eb6d

107015021 has 4 divisors (see below), whose sum is σ = 111667872. Its totient is φ = 102362172.

The previous prime is 107015009. The next prime is 107015023. The reversal of 107015021 is 120510701.

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: 120510701 = 307392543.

It is a cyclic number.

It is not a de Polignac number, because 107015021 - 222 = 102820717 is a prime.

It is a super-2 number, since 2×1070150212 = 22904429439260882, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107015023) 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, 2326391 + ... + 2326436.

It is an arithmetic number, because the mean of its divisors is an integer number (27916968).

Almost surely, 2107015021 is an apocalyptic number.

It is an amenable number.

107015021 is a deficient number, since it is larger than the sum of its proper divisors (4652851).

107015021 is an equidigital number, since it uses as much as digits as its factorization.

107015021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4652850.

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 107015021 is about 10344.8064747486. The cubic root of 107015021 is about 474.7681542607.

Adding to 107015021 its reverse (120510701), we get a palindrome (227525722).

The spelling of 107015021 in words is "one hundred seven million, fifteen thousand, twenty-one".

Divisors: 1 23 4652827 107015021