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3101143140 = 2232519906767
BaseRepresentation
bin1011100011010111…
…1011000001100100
322000010100101122100
42320311323001210
522322343040030
61231420132100
7136564165434
oct27065730144
98003311570
103101143140
111351572817
12726697030
133a5638454
14215c142c4
151323c2360
hexb8d7b064

3101143140 has 72 divisors (see below), whose sum is σ = 9901906560. Its totient is φ = 783445824.

The previous prime is 3101143139. The next prime is 3101143141. The reversal of 3101143140 is 413411013.

3101143140 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3101143139) and next prime (3101143141).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (3101143141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 449964 + ... + 456803.

It is an arithmetic number, because the mean of its divisors is an integer number (137526480).

Almost surely, 23101143140 is an apocalyptic number.

3101143140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3101143140 is an abundant number, since it is smaller than the sum of its proper divisors (6800763420).

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

3101143140 is a wasteful number, since it uses less digits than its factorization.

3101143140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906801 (or 906796 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 3101143140 is about 55687.9083823410. The cubic root of 3101143140 is about 1458.2789409119.

Adding to 3101143140 its reverse (413411013), we get a palindrome (3514554153).

The spelling of 3101143140 in words is "three billion, one hundred one million, one hundred forty-three thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 19 20 30 36 38 45 57 60 76 90 95 114 171 180 190 228 285 342 380 570 684 855 1140 1710 3420 906767 1813534 2720301 3627068 4533835 5440602 8160903 9067670 10881204 13601505 16321806 17228573 18135340 27203010 32643612 34457146 40804515 51685719 54406020 68914292 81609030 86142865 103371438 155057157 163218060 172285730 206742876 258428595 310114314 344571460 516857190 620228628 775285785 1033714380 1550571570 3101143140