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3140120231 = 31101294201
BaseRepresentation
bin1011101100101010…
…0110111010100111
322002211200122011022
42323022212322213
522412332321411
61235331401355
7140546403323
oct27312467247
98084618138
103140120231
111371574896
1273775325b
133b0734511
1421b07c983
15135a20edb
hexbb2a6ea7

3140120231 has 4 divisors (see below), whose sum is σ = 3241414464. Its totient is φ = 3038826000.

The previous prime is 3140120219. The next prime is 3140120233. The reversal of 3140120231 is 1320210413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3140120231 - 226 = 3073011367 is a prime.

It is a super-2 number, since 2×31401202312 = 19720710130270986722, 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 (3140120233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50647070 + ... + 50647131.

It is an arithmetic number, because the mean of its divisors is an integer number (810353616).

Almost surely, 23140120231 is an apocalyptic number.

3140120231 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3140120231 is a deficient number, since it is larger than the sum of its proper divisors (101294233).

3140120231 is a wasteful number, since it uses less digits than its factorization.

3140120231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101294232.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3140120231 is about 56036.7757013196. The cubic root of 3140120231 is about 1464.3630402418.

Adding to 3140120231 its reverse (1320210413), we get a palindrome (4460330644).

The spelling of 3140120231 in words is "three billion, one hundred forty million, one hundred twenty thousand, two hundred thirty-one".

Divisors: 1 31 101294201 3140120231