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163152740 = 22517479861
BaseRepresentation
bin10011011100110…
…00001101100100
3102101000000111002
421232120031210
5313231341430
624104532432
74020526652
oct1156301544
9371000432
10163152740
1184106083
1246781118
1327a557aa
141794ddd2
15e4cb845
hex9b98364

163152740 has 24 divisors (see below), whose sum is σ = 362775672. Its totient is φ = 61422080.

The previous prime is 163152733. The next prime is 163152749. The reversal of 163152740 is 47251361.

It can be written as a sum of positive squares in 4 ways, for example, as 48748324 + 114404416 = 6982^2 + 10696^2 .

It is not an unprimeable number, because it can be changed into a prime (163152749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239591 + ... + 240270.

It is an arithmetic number, because the mean of its divisors is an integer number (15115653).

Almost surely, 2163152740 is an apocalyptic number.

163152740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163152740 is an abundant number, since it is smaller than the sum of its proper divisors (199622932).

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

163152740 is a wasteful number, since it uses less digits than its factorization.

163152740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479887 (or 479885 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 163152740 is about 12773.1256942066. The cubic root of 163152740 is about 546.4261277340.

The spelling of 163152740 in words is "one hundred sixty-three million, one hundred fifty-two thousand, seven hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 479861 959722 1919444 2399305 4798610 8157637 9597220 16315274 32630548 40788185 81576370 163152740