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163144202 = 21311355529
BaseRepresentation
bin10011011100101…
…10001000001010
3102100222120202212
421232112020022
5313231103302
624104425122
74020463034
oct1156261012
9370876685
10163144202
11840aa721
12467781a2
1327a51940
141794ac54
15e4c9052
hex9b9620a

163144202 has 16 divisors (see below), whose sum is σ = 265877640. Its totient is φ = 74629632.

The previous prime is 163144187. The next prime is 163144217. The reversal of 163144202 is 202441361.

It is an interprime number because it is at equal distance from previous prime (163144187) and next prime (163144217).

It can be written as a sum of positive squares in 4 ways, for example, as 14523721 + 148620481 = 3811^2 + 12191^2 .

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, 24827 + ... + 30702.

Almost surely, 2163144202 is an apocalyptic number.

163144202 is a deficient number, since it is larger than the sum of its proper divisors (102733438).

163144202 is a wasteful number, since it uses less digits than its factorization.

163144202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55657.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 163144202 is about 12772.7914725012. The cubic root of 163144202 is about 546.4165958322.

Adding to 163144202 its reverse (202441361), we get a palindrome (365585563).

The spelling of 163144202 in words is "one hundred sixty-three million, one hundred forty-four thousand, two hundred two".

Divisors: 1 2 13 26 113 226 1469 2938 55529 111058 721877 1443754 6274777 12549554 81572101 163144202