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2420442140 = 225121022107
BaseRepresentation
bin1001000001000101…
…0000010000011100
320020200111012102012
42100101100100130
514424113122030
61040102250352
7113660263424
oct22021202034
96220435365
102420442140
111032305006
125767269b8
132c75c53ac
1418d661484
15e2763095
hex9045041c

2420442140 has 12 divisors (see below), whose sum is σ = 5082928536. Its totient is φ = 968176848.

The previous prime is 2420442139. The next prime is 2420442151. The reversal of 2420442140 is 412440242.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60511034 + ... + 60511073.

It is an arithmetic number, because the mean of its divisors is an integer number (423577378).

Almost surely, 22420442140 is an apocalyptic number.

2420442140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2420442140 is an abundant number, since it is smaller than the sum of its proper divisors (2662486396).

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

2420442140 is a wasteful number, since it uses less digits than its factorization.

2420442140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121022116 (or 121022114 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 2420442140 is about 49197.9891865511. The cubic root of 2420442140 is about 1342.6564478465.

Adding to 2420442140 its reverse (412440242), we get a palindrome (2832882382).

The spelling of 2420442140 in words is "two billion, four hundred twenty million, four hundred forty-two thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 121022107 242044214 484088428 605110535 1210221070 2420442140