Search a number
-
+
3105693 = 32615657
BaseRepresentation
bin1011110110001110011101
312211210012200
423312032131
51243340233
6150322113
735253333
oct13661635
95753180
103105693
111831398
121059339
138497b6
145abb53
15415313
hex2f639d

3105693 has 12 divisors (see below), whose sum is σ = 4560348. Its totient is φ = 2036160.

The previous prime is 3105691. The next prime is 3105703. The reversal of 3105693 is 3965013.

It can be written as a sum of positive squares in 2 ways, for example, as 191844 + 2913849 = 438^2 + 1707^2 .

It is not a de Polignac number, because 3105693 - 21 = 3105691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3105691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2280 + ... + 3377.

It is an arithmetic number, because the mean of its divisors is an integer number (380029).

Almost surely, 23105693 is an apocalyptic number.

It is an amenable number.

3105693 is a deficient number, since it is larger than the sum of its proper divisors (1454655).

3105693 is a wasteful number, since it uses less digits than its factorization.

3105693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5724 (or 5721 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 3105693 is about 1762.2976479585. The cubic root of 3105693 is about 145.8991766529.

The spelling of 3105693 in words is "three million, one hundred five thousand, six hundred ninety-three".

Divisors: 1 3 9 61 183 549 5657 16971 50913 345077 1035231 3105693