Search a number
-
+
162993960 = 233251726633
BaseRepresentation
bin10011011011100…
…01011100101000
3102100200221200100
421231301130220
5313211301320
624101305400
74016266023
oct1155613450
9370627610
10162993960
1184007858
1246705260
13279cb43c
141790c1ba
15e499790
hex9b71728

162993960 has 96 divisors (see below), whose sum is σ = 560912040. Its totient is φ = 40906752.

The previous prime is 162993953. The next prime is 162993967. The reversal of 162993960 is 69399261.

It is a happy number.

162993960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (162993953) and next prime (162993967).

It can be written as a sum of positive squares in 4 ways, for example, as 162868644 + 125316 = 12762^2 + 354^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (162993967) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7197 + ... + 19436.

Almost surely, 2162993960 is an apocalyptic number.

162993960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162993960 is an abundant number, since it is smaller than the sum of its proper divisors (397918080).

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

162993960 is a wasteful number, since it uses less digits than its factorization.

162993960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26667 (or 26660 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 162993960 is about 12766.9087879565. The cubic root of 162993960 is about 546.2488098391.

The spelling of 162993960 in words is "one hundred sixty-two million, nine hundred ninety-three thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 17 18 20 24 30 34 36 40 45 51 60 68 72 85 90 102 120 136 153 170 180 204 255 306 340 360 408 510 612 680 765 1020 1224 1530 2040 3060 6120 26633 53266 79899 106532 133165 159798 213064 239697 266330 319596 399495 452761 479394 532660 639192 798990 905522 958788 1065320 1198485 1358283 1597980 1811044 1917576 2263805 2396970 2716566 3195960 3622088 4074849 4527610 4793940 5433132 6791415 8149698 9055220 9587880 10866264 13582830 16299396 18110440 20374245 27165660 32598792 40748490 54331320 81496980 162993960