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193122072 = 2332111318757
BaseRepresentation
bin10111000001011…
…00111100011000
3111110101121200100
423200230330120
5343414401242
631055135400
74533340053
oct1340547430
9443347610
10193122072
119a015520
1254814560
1331019820
141b911a9a
1511e4b54c
hexb82cf18

193122072 has 96 divisors (see below), whose sum is σ = 614512080. Its totient is φ = 54017280.

The previous prime is 193122071. The next prime is 193122077. The reversal of 193122072 is 270221391.

It is a super-2 number, since 2×1931220722 = 74592269387146368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193122071) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 918 + ... + 19674.

Almost surely, 2193122072 is an apocalyptic number.

193122072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 193122072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307256040).

193122072 is an abundant number, since it is smaller than the sum of its proper divisors (421390008).

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

193122072 is a wasteful number, since it uses less digits than its factorization.

193122072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18793 (or 18786 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 193122072 is about 13896.8367623715. The cubic root of 193122072 is about 578.0214708483.

It can be divided in two parts, 193 and 122072, that added together give a triangular number (122265 = T494).

The spelling of 193122072 in words is "one hundred ninety-three million, one hundred twenty-two thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 11 12 13 18 22 24 26 33 36 39 44 52 66 72 78 88 99 104 117 132 143 156 198 234 264 286 312 396 429 468 572 792 858 936 1144 1287 1716 2574 3432 5148 10296 18757 37514 56271 75028 112542 150056 168813 206327 225084 243841 337626 412654 450168 487682 618981 675252 731523 825308 975364 1237962 1350504 1463046 1650616 1856943 1950728 2194569 2475924 2682251 2926092 3713886 4389138 4951848 5364502 5852184 7427772 8046753 8778276 10729004 14855544 16093506 17556552 21458008 24140259 32187012 48280518 64374024 96561036 193122072