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163280842 = 21015031607
BaseRepresentation
bin10011011101101…
…11011111001010
3102101020112012121
421232313133022
5313244441332
624111401454
74021602304
oct1156673712
9371215177
10163280842
118419334a
124682328a
1327a9bbaa
1417984974
15e504797
hex9bb77ca

163280842 has 16 divisors (see below), whose sum is σ = 247992192. Its totient is φ = 80621200.

The previous prime is 163280797. The next prime is 163280857. The reversal of 163280842 is 248082361.

It is a junction number, because it is equal to n+sod(n) for n = 163280798 and 163280807.

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, 100803 + ... + 102409.

It is an arithmetic number, because the mean of its divisors is an integer number (15499512).

Almost surely, 2163280842 is an apocalyptic number.

163280842 is a deficient number, since it is larger than the sum of its proper divisors (84711350).

163280842 is a wasteful number, since it uses less digits than its factorization.

163280842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 163280842 is about 12778.1392229072. The cubic root of 163280842 is about 546.5691020776.

The spelling of 163280842 in words is "one hundred sixty-three million, two hundred eighty thousand, eight hundred forty-two".

Divisors: 1 2 101 202 503 1006 1607 3214 50803 101606 162307 324614 808321 1616642 81640421 163280842