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3100130101 = 18611665841
BaseRepresentation
bin1011100011001000…
…0011101100110101
322000001102221000101
42320302003230311
522322113130401
61231342314101
7136552446115
oct27062035465
98001387011
103100130101
111350a406a2
12726288931
133a5372313
14215a2d045
15132272101
hexb8c83b35

3100130101 has 4 divisors (see below), whose sum is σ = 3101797804. Its totient is φ = 3098462400.

The previous prime is 3100130069. The next prime is 3100130123. The reversal of 3100130101 is 1010310013.

3100130101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1010310013 = 1231820723.

It can be written as a sum of positive squares in 2 ways, for example, as 546343876 + 2553786225 = 23374^2 + 50535^2 .

It is a cyclic number.

It is not a de Polignac number, because 3100130101 - 25 = 3100130069 is a prime.

It is a super-2 number, since 2×31001301012 = 19221613286252540402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3100130701) 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, 831060 + ... + 834781.

It is an arithmetic number, because the mean of its divisors is an integer number (775449451).

Almost surely, 23100130101 is an apocalyptic number.

It is an amenable number.

3100130101 is a deficient number, since it is larger than the sum of its proper divisors (1667703).

3100130101 is a wasteful number, since it uses less digits than its factorization.

3100130101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667702.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 3100130101 is about 55678.8119575122. The cubic root of 3100130101 is about 1458.1201334160.

Adding to 3100130101 its reverse (1010310013), we get a palindrome (4110440114).

The spelling of 3100130101 in words is "three billion, one hundred million, one hundred thirty thousand, one hundred one".

Divisors: 1 1861 1665841 3100130101