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163252949 = 478341849
BaseRepresentation
bin10011011101100…
…00101011010101
3102101012002221112
421232300223111
5313243043244
624111024405
74021425056
oct1156605325
9371162845
10163252949
11841743a2
124680b105
1327a8c2a2
141797872d
15e4eb39e
hex9bb0ad5

163252949 has 8 divisors (see below), whose sum is σ = 168739200. Its totient is φ = 157850656.

The previous prime is 163252933. The next prime is 163252963. The reversal of 163252949 is 949252361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163252949 - 24 = 163252933 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163252909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17024 + ... + 24825.

It is an arithmetic number, because the mean of its divisors is an integer number (21092400).

Almost surely, 2163252949 is an apocalyptic number.

It is an amenable number.

163252949 is a deficient number, since it is larger than the sum of its proper divisors (5486251).

163252949 is an equidigital number, since it uses as much as digits as its factorization.

163252949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41979.

The product of its digits is 116640, while the sum is 41.

The square root of 163252949 is about 12777.0477419473. The cubic root of 163252949 is about 546.5379771357.

The spelling of 163252949 in words is "one hundred sixty-three million, two hundred fifty-two thousand, nine hundred forty-nine".

Divisors: 1 47 83 3901 41849 1966903 3473467 163252949