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2240031421 = 47355713399
BaseRepresentation
bin1000010110000100…
…0010101010111101
312210010000101102201
42011201002222331
514041422001141
61010135351501
7106336644565
oct20541025275
95703011381
102240031421
11a4a491841
12526222591
132991095a4
141736dbda5
15d19c8031
hex85842abd

2240031421 has 8 divisors (see below), whose sum is σ = 2288505600. Its totient is φ = 2191591248.

The previous prime is 2240031419. The next prime is 2240031439. The reversal of 2240031421 is 1241300422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2240031421 - 21 = 2240031419 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 (2240091421) 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, 160480 + ... + 173878.

It is an arithmetic number, because the mean of its divisors is an integer number (286063200).

Almost surely, 22240031421 is an apocalyptic number.

It is an amenable number.

2240031421 is a deficient number, since it is larger than the sum of its proper divisors (48474179).

2240031421 is a wasteful number, since it uses less digits than its factorization.

2240031421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17003.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2240031421 is about 47328.9702085308. The cubic root of 2240031421 is about 1308.4326419144.

Adding to 2240031421 its reverse (1241300422), we get a palindrome (3481331843).

The spelling of 2240031421 in words is "two billion, two hundred forty million, thirty-one thousand, four hundred twenty-one".

Divisors: 1 47 3557 13399 167179 629753 47660243 2240031421