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348053820 = 223537156781
BaseRepresentation
bin10100101111101…
…110000100111100
3220020220222002020
4110233232010330
51203100210240
654312000140
711424260112
oct2457560474
9806828066
10348053820
11169515a94
1298690050
135715440a
1434321ab2
15208520d0
hex14bee13c

348053820 has 48 divisors (see below), whose sum is σ = 1000896288. Its totient is φ = 90305280.

The previous prime is 348053819. The next prime is 348053851. The reversal of 348053820 is 28350843.

It is a super-2 number, since 2×3480538202 = 242282923233184800, 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 15 ways as a sum of consecutive naturals, for example, 76171 + ... + 80610.

It is an arithmetic number, because the mean of its divisors is an integer number (20852006).

Almost surely, 2348053820 is an apocalyptic number.

348053820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

348053820 is an abundant number, since it is smaller than the sum of its proper divisors (652842468).

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

348053820 is a wasteful number, since it uses less digits than its factorization.

348053820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156830 (or 156828 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 348053820 is about 18656.2005778240. The cubic root of 348053820 is about 703.4212244383.

The spelling of 348053820 in words is "three hundred forty-eight million, fifty-three thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 111 148 185 222 370 444 555 740 1110 2220 156781 313562 470343 627124 783905 940686 1567810 1881372 2351715 3135620 4703430 5800897 9406860 11601794 17402691 23203588 29004485 34805382 58008970 69610764 87013455 116017940 174026910 348053820