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2211210140 = 225137807011
BaseRepresentation
bin1000001111001100…
…0110001110011100
312201002210010001212
42003303012032130
514012032211030
61003225523552
7105536655536
oct20363061634
95632703055
102211210140
11a351969a7
125186435b8
13293157c89
1416d958856
15ce1d3595
hex83cc639c

2211210140 has 24 divisors (see below), whose sum is σ = 4677441552. Its totient is φ = 878026880.

The previous prime is 2211210121. The next prime is 2211210143. The reversal of 2211210140 is 410121122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211210143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400766 + ... + 406245.

It is an arithmetic number, because the mean of its divisors is an integer number (194893398).

Almost surely, 22211210140 is an apocalyptic number.

2211210140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211210140 is an abundant number, since it is smaller than the sum of its proper divisors (2466231412).

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

2211210140 is a wasteful number, since it uses less digits than its factorization.

2211210140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807157 (or 807155 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2211210140 is about 47023.5062495344. The cubic root of 2211210140 is about 1302.7967677859.

Adding to 2211210140 its reverse (410121122), we get a palindrome (2621331262).

The spelling of 2211210140 in words is "two billion, two hundred eleven million, two hundred ten thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 137 274 548 685 1370 2740 807011 1614022 3228044 4035055 8070110 16140220 110560507 221121014 442242028 552802535 1105605070 2211210140