Search a number
-
+
3101111140 = 225155055557
BaseRepresentation
bin1011100011010111…
…0011001101100100
322000010021202202011
42320311303031210
522322341024030
61231415324004
7136564003231
oct27065631544
98003252664
103101111140
111351550776
12726680604
133a5626a0a
14215c06788
151323b7b2a
hexb8d73364

3101111140 has 12 divisors (see below), whose sum is σ = 6512333436. Its totient is φ = 1240444448.

The previous prime is 3101111131. The next prime is 3101111161. The reversal of 3101111140 is 411111013.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1968519424 + 1132591716 = 44368^2 + 33654^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3101111140.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77527759 + ... + 77527798.

It is an arithmetic number, because the mean of its divisors is an integer number (542694453).

Almost surely, 23101111140 is an apocalyptic number.

It is an amenable number.

3101111140 is an abundant number, since it is smaller than the sum of its proper divisors (3411222296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3101111140 is a wasteful number, since it uses less digits than its factorization.

3101111140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155055566 (or 155055564 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 3101111140 is about 55687.6210660861. The cubic root of 3101111140 is about 1458.2739250103.

Adding to 3101111140 its reverse (411111013), we get a palindrome (3512222153).

The spelling of 3101111140 in words is "three billion, one hundred one million, one hundred eleven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 155055557 310111114 620222228 775277785 1550555570 3101111140