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2140023061 = 1131607831
BaseRepresentation
bin111111110001110…
…0010100100010101
312112010211102202101
41333203202210111
513340321214221
6552204042101
7104013616201
oct17743424425
95463742671
102140023061
119a8a95000
124b8833331
13281492047
14164307b01
15c7d20d91
hex7f8e2915

2140023061 has 8 divisors (see below), whose sum is σ = 2353866048. Its totient is φ = 1945474300.

The previous prime is 2140023049. The next prime is 2140023101. The reversal of 2140023061 is 1603200412.

It is not a de Polignac number, because 2140023061 - 225 = 2106468629 is a prime.

It is a super-2 number, since 2×21400230612 = 9159397403223619442, 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 (2140023001) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 802585 + ... + 805246.

It is an arithmetic number, because the mean of its divisors is an integer number (294233256).

Almost surely, 22140023061 is an apocalyptic number.

It is an amenable number.

2140023061 is a deficient number, since it is larger than the sum of its proper divisors (213842987).

2140023061 is an equidigital number, since it uses as much as digits as its factorization.

2140023061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607864 (or 1607842 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2140023061 is about 46260.3832777032. The cubic root of 2140023061 is about 1288.6633714599.

Adding to 2140023061 its reverse (1603200412), we get a palindrome (3743223473).

The spelling of 2140023061 in words is "two billion, one hundred forty million, twenty-three thousand, sixty-one".

Divisors: 1 11 121 1331 1607831 17686141 194547551 2140023061