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2140310220 = 223535671837
BaseRepresentation
bin111111110010010…
…1000101011001100
312112011101000122220
41333210220223030
513340404411340
6552214135340
7104016223326
oct17744505314
95464330586
102140310220
119a9170824
124b8951550
13281562969
14164380616
15c7d7aed0
hex7f928acc

2140310220 has 24 divisors (see below), whose sum is σ = 5992868784. Its totient is φ = 570749376.

The previous prime is 2140310219. The next prime is 2140310239. The reversal of 2140310220 is 220130412.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2140310220.

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 7 ways as a sum of consecutive naturals, for example, 17835859 + ... + 17835978.

It is an arithmetic number, because the mean of its divisors is an integer number (249702866).

Almost surely, 22140310220 is an apocalyptic number.

2140310220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2140310220 is an abundant number, since it is smaller than the sum of its proper divisors (3852558564).

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

2140310220 is a wasteful number, since it uses less digits than its factorization.

2140310220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35671849 (or 35671847 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2140310220 is about 46263.4868984170. The cubic root of 2140310220 is about 1288.7210086479.

Adding to 2140310220 its reverse (220130412), we get a palindrome (2360440632).

The spelling of 2140310220 in words is "two billion, one hundred forty million, three hundred ten thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 35671837 71343674 107015511 142687348 178359185 214031022 356718370 428062044 535077555 713436740 1070155110 2140310220