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163031002 = 2449181549
BaseRepresentation
bin10011011011110…
…10011111011010
3102100202211111021
421231322133122
5313213443002
624102153054
74016512021
oct1155723732
9370684437
10163031002
1184032672
124672278a
1327a12264
141791b8b8
15e4a5737
hex9b7a7da

163031002 has 8 divisors (see below), whose sum is σ = 245092500. Its totient is φ = 81333504.

The previous prime is 163030951. The next prime is 163031027. The reversal of 163031002 is 200130361.

It can be written as a sum of positive squares in 2 ways, for example, as 158986881 + 4044121 = 12609^2 + 2011^2 .

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

It is a super-2 number, since 2×1630310022 = 53158215226248008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89877 + ... + 91672.

Almost surely, 2163031002 is an apocalyptic number.

163031002 is a deficient number, since it is larger than the sum of its proper divisors (82061498).

163031002 is a wasteful number, since it uses less digits than its factorization.

163031002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182000.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 163031002 is about 12768.3594091019. The cubic root of 163031002 is about 546.2901868648.

Adding to 163031002 its reverse (200130361), we get a palindrome (363161363).

The spelling of 163031002 in words is "one hundred sixty-three million, thirty-one thousand, two".

Divisors: 1 2 449 898 181549 363098 81515501 163031002