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283212830 = 25411315273
BaseRepresentation
bin10000111000010…
…111110000011110
3201201220200222002
4100320113300132
51040000302310
644034122302
710006161245
oct2070276036
9651820862
10283212830
11135958a9a
127aa20392
13468a0b74
142988395c
1519ce4da5
hex10e17c1e

283212830 has 32 divisors (see below), whose sum is σ = 526303008. Its totient is φ = 109657600.

The previous prime is 283212827. The next prime is 283212857. The reversal of 283212830 is 38212382.

It is a junction number, because it is equal to n+sod(n) for n = 283212793 and 283212802.

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, 51074 + ... + 56346.

It is an arithmetic number, because the mean of its divisors is an integer number (16446969).

Almost surely, 2283212830 is an apocalyptic number.

283212830 is a deficient number, since it is larger than the sum of its proper divisors (243090178).

283212830 is a wasteful number, since it uses less digits than its factorization.

283212830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5452.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 283212830 is about 16828.9283675462. The cubic root of 283212830 is about 656.7059853748.

The spelling of 283212830 in words is "two hundred eighty-three million, two hundred twelve thousand, eight hundred thirty".

Divisors: 1 2 5 10 41 82 131 205 262 410 655 1310 5273 5371 10546 10742 26365 26855 52730 53710 216193 432386 690763 1080965 1381526 2161930 3453815 6907630 28321283 56642566 141606415 283212830