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163442080 = 2551760089
BaseRepresentation
bin10011011110111…
…10110110100000
3102101112201101101
421233132312200
5313320121310
624115044144
74023143344
oct1157366640
9371481341
10163442080
11842934aa
12468a0654
1327b273b9
14179c7624
15e53743a
hex9bdeda0

163442080 has 48 divisors (see below), whose sum is σ = 408852360. Its totient is φ = 61530112.

The previous prime is 163442053. The next prime is 163442093. The reversal of 163442080 is 80244361.

It can be written as a sum of positive squares in 4 ways, for example, as 163123984 + 318096 = 12772^2 + 564^2 .

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, 27325 + ... + 32764.

Almost surely, 2163442080 is an apocalyptic number.

163442080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163442080 is an abundant number, since it is smaller than the sum of its proper divisors (245410280).

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

163442080 is a wasteful number, since it uses less digits than its factorization.

163442080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60121 (or 60113 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 163442080 is about 12784.4468007028. The cubic root of 163442080 is about 546.7489531761.

The spelling of 163442080 in words is "one hundred sixty-three million, four hundred forty-two thousand, eighty".

Divisors: 1 2 4 5 8 10 16 17 20 32 34 40 68 80 85 136 160 170 272 340 544 680 1360 2720 60089 120178 240356 300445 480712 600890 961424 1021513 1201780 1922848 2043026 2403560 4086052 4807120 5107565 8172104 9614240 10215130 16344208 20430260 32688416 40860520 81721040 163442080