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342982720 = 2651071821
BaseRepresentation
bin10100011100011…
…000000001000000
3212220101022211201
4110130120001000
51200300421340
654011150544
711333206423
oct2434300100
9786338751
10342982720
11166671aa3
1296a45454
135609a172
14337a19ba
152019e79a
hex14718040

342982720 has 28 divisors (see below), whose sum is σ = 816728364. Its totient is φ = 137192960.

The previous prime is 342982709. The next prime is 342982721. The reversal of 342982720 is 27289243.

It can be written as a sum of positive squares in 2 ways, for example, as 185831424 + 157151296 = 13632^2 + 12536^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 342982720.

It is not an unprimeable number, because it can be changed into a prime (342982721) 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, 535591 + ... + 536230.

Almost surely, 2342982720 is an apocalyptic number.

It is an amenable number.

342982720 is an abundant number, since it is smaller than the sum of its proper divisors (473745644).

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

342982720 is a wasteful number, since it uses less digits than its factorization.

342982720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071838 (or 1071828 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 342982720 is about 18519.7926554268. The cubic root of 342982720 is about 699.9882447006.

The spelling of 342982720 in words is "three hundred forty-two million, nine hundred eighty-two thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 1071821 2143642 4287284 5359105 8574568 10718210 17149136 21436420 34298272 42872840 68596544 85745680 171491360 342982720