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2420870460 = 223540347841
BaseRepresentation
bin1001000001001011…
…1000110100111100
320020201021221221220
42100102320310330
514424220323320
61040115353340
7113664026241
oct22022706474
96221257856
102420870460
111032577898
125768b2850
132c7715338
1418d7335c8
15e27e9e40
hex904b8d3c

2420870460 has 24 divisors (see below), whose sum is σ = 6778437456. Its totient is φ = 645565440.

The previous prime is 2420870443. The next prime is 2420870519. The reversal of 2420870460 is 640780242.

It is a super-2 number, since 2×24208704602 = 11721227568201223200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20173861 + ... + 20173980.

It is an arithmetic number, because the mean of its divisors is an integer number (282434894).

Almost surely, 22420870460 is an apocalyptic number.

2420870460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2420870460 is an abundant number, since it is smaller than the sum of its proper divisors (4357566996).

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

2420870460 is a wasteful number, since it uses less digits than its factorization.

2420870460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40347853 (or 40347851 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 2420870460 is about 49202.3420174284. The cubic root of 2420870460 is about 1342.7356417371.

The spelling of 2420870460 in words is "two billion, four hundred twenty million, eight hundred seventy thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 40347841 80695682 121043523 161391364 201739205 242087046 403478410 484174092 605217615 806956820 1210435230 2420870460