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197023068 = 2232111573169
BaseRepresentation
bin10111011111001…
…01010101011100
3111201201210211200
423233211111130
5400414214233
631314515500
74611445164
oct1357452534
9451653750
10197023068
11a123a390
1255b95b90
1331a842c8
141c2495a4
151246c313
hexbbe555c

197023068 has 72 divisors (see below), whose sum is σ = 546939120. Its totient is φ = 59304960.

The previous prime is 197023063. The next prime is 197023091. The reversal of 197023068 is 860320791.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197023063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60588 + ... + 63756.

Almost surely, 2197023068 is an apocalyptic number.

197023068 is a gapful number since it is divisible by the number (18) 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 197023068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273469560).

197023068 is an abundant number, since it is smaller than the sum of its proper divisors (349916052).

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

197023068 is a wasteful number, since it uses less digits than its factorization.

197023068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3347 (or 3342 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 197023068 is about 14036.4905870378. The cubic root of 197023068 is about 581.8874972963.

The spelling of 197023068 in words is "one hundred ninety-seven million, twenty-three thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 157 198 314 396 471 628 942 1413 1727 1884 2826 3169 3454 5181 5652 6338 6908 9507 10362 12676 15543 19014 20724 28521 31086 34859 38028 57042 62172 69718 104577 114084 139436 209154 313731 418308 497533 627462 995066 1254924 1492599 1990132 2985198 4477797 5472863 5970396 8955594 10945726 16418589 17911188 21891452 32837178 49255767 65674356 98511534 197023068