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163966088 = 231113178431
BaseRepresentation
bin10011100010111…
…10110010001000
3102102112100012002
421301132302020
5313433403323
624134210132
74030455146
oct1161366210
9372470162
10163966088
1184611170
1246ab3948
1327c7ba70
1417ac2596
15e5dc828
hex9c5ec88

163966088 has 64 divisors (see below), whose sum is σ = 382475520. Its totient is φ = 64742400.

The previous prime is 163966079. The next prime is 163966097. The reversal of 163966088 is 880669361.

It is an interprime number because it is at equal distance from previous prime (163966079) and next prime (163966097).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15233 + ... + 23663.

It is an arithmetic number, because the mean of its divisors is an integer number (5976180).

Almost surely, 2163966088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163966088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191237760).

163966088 is an abundant number, since it is smaller than the sum of its proper divisors (218509432).

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

163966088 is a wasteful number, since it uses less digits than its factorization.

163966088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8478 (or 8474 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 163966088 is about 12804.9243652589. The cubic root of 163966088 is about 547.3326363752.

The spelling of 163966088 in words is "one hundred sixty-three million, nine hundred sixty-six thousand, eighty-eight".

Divisors: 1 2 4 8 11 13 17 22 26 34 44 52 68 88 104 136 143 187 221 286 374 442 572 748 884 1144 1496 1768 2431 4862 8431 9724 16862 19448 33724 67448 92741 109603 143327 185482 219206 286654 370964 438412 573308 741928 876824 1146616 1205633 1576597 1863251 2411266 3153194 3726502 4822532 6306388 7453004 9645064 12612776 14906008 20495761 40991522 81983044 163966088