Search a number
-
+
105607949 = 2332811613
BaseRepresentation
bin1100100101101…
…11001100001101
321100201102212112
412102313030031
5204013423244
614251313405
72421436616
oct622671415
9240642775
10105607949
11546818a7
122b44b865
1318b58215
1410050c0d
15941139e
hex64b730d

105607949 has 8 divisors (see below), whose sum is σ = 106504632. Its totient is φ = 104715520.

The previous prime is 105607933. The next prime is 105607951. The reversal of 105607949 is 949706501.

It can be written as a sum of positive squares in 4 ways, for example, as 15015625 + 90592324 = 3875^2 + 9518^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105607949 - 24 = 105607933 is a prime.

It is a super-2 number, since 2×1056079492 = 22306077783973202, 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 (105607849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64667 + ... + 66279.

It is an arithmetic number, because the mean of its divisors is an integer number (13313079).

Almost surely, 2105607949 is an apocalyptic number.

It is an amenable number.

105607949 is a deficient number, since it is larger than the sum of its proper divisors (896683).

105607949 is a wasteful number, since it uses less digits than its factorization.

105607949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 105607949 is about 10276.5728236606. The cubic root of 105607949 is about 472.6781598150.

The spelling of 105607949 in words is "one hundred five million, six hundred seven thousand, nine hundred forty-nine".

Divisors: 1 233 281 1613 65473 375829 453253 105607949