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2240120101 = 5342266417
BaseRepresentation
bin1000010110000101…
…1000010100100101
312210010011220002011
42011201120110211
514041432320401
61010141314221
7106340464252
oct20541302445
95703156064
102240120101
11a4a54242a
12526265971
1329913aa6b
14173722429
15d19e4451
hex85858525

2240120101 has 4 divisors (see below), whose sum is σ = 2282386572. Its totient is φ = 2197853632.

The previous prime is 2240120093. The next prime is 2240120111. The reversal of 2240120101 is 1010210422.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 891321025 + 1348799076 = 29855^2 + 36726^2 .

It is a cyclic number.

It is not a de Polignac number, because 2240120101 - 23 = 2240120093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240120111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21133156 + ... + 21133261.

It is an arithmetic number, because the mean of its divisors is an integer number (570596643).

Almost surely, 22240120101 is an apocalyptic number.

It is an amenable number.

2240120101 is a deficient number, since it is larger than the sum of its proper divisors (42266471).

2240120101 is an equidigital number, since it uses as much as digits as its factorization.

2240120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42266470.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2240120101 is about 47329.9070461796. The cubic root of 2240120101 is about 1308.4499080822.

Adding to 2240120101 its reverse (1010210422), we get a palindrome (3250330523).

The spelling of 2240120101 in words is "two billion, two hundred forty million, one hundred twenty thousand, one hundred one".

Divisors: 1 53 42266417 2240120101