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2420981282 = 28269146389
BaseRepresentation
bin1001000001001101…
…0011111000100010
320020201111120222102
42100103103320202
514424232400112
61040122010402
7113665000316
oct22023237042
96221446872
102420981282
111032643085
12576946a02
132c7753905
1418d761b46
15e281cbc2
hex904d3e22

2420981282 has 8 divisors (see below), whose sum is σ = 3631935900. Its totient is φ = 1210335984.

The previous prime is 2420981281. The next prime is 2420981287. The reversal of 2420981282 is 2821890242.

It can be written as a sum of positive squares in 2 ways, for example, as 2234358361 + 186622921 = 47269^2 + 13661^2 .

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

It is a super-2 number, since 2×24209812822 = 11722300735588727048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2420981281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56657 + ... + 89732.

Almost surely, 22420981282 is an apocalyptic number.

2420981282 is a deficient number, since it is larger than the sum of its proper divisors (1210954618).

2420981282 is a wasteful number, since it uses less digits than its factorization.

2420981282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154660.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 2420981282 is about 49203.4681907688. The cubic root of 2420981282 is about 1342.7561305628.

The spelling of 2420981282 in words is "two billion, four hundred twenty million, nine hundred eighty-one thousand, two hundred eighty-two".

Divisors: 1 2 8269 16538 146389 292778 1210490641 2420981282