Search a number
-
+
193628232 = 233871731
BaseRepresentation
bin10111000101010…
…00100001001000
3111111100100000000
423202220201020
5344032100412
631114043000
74540545540
oct1342504110
9444310000
10193628232
119a330836
1254a19460
1331166025
141ba04320
1511eeb4dc
hexb8a8848

193628232 has 288 divisors, whose sum is σ = 680209920. Its totient is φ = 50388480.

The previous prime is 193628231. The next prime is 193628243. The reversal of 193628232 is 232826391.

193628232 is a `hidden beast` number, since 1 + 9 + 3 + 628 + 23 + 2 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (193628231) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6246057 + ... + 6246087.

It is an arithmetic number, because the mean of its divisors is an integer number (2361840).

Almost surely, 2193628232 is an apocalyptic number.

193628232 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 193628232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340104960).

193628232 is an abundant number, since it is smaller than the sum of its proper divisors (486581688).

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

193628232 is an equidigital number, since it uses as much as digits as its factorization.

193628232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 60 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 193628232 is about 13915.0361839271. The cubic root of 193628232 is about 578.5260154832.

The spelling of 193628232 in words is "one hundred ninety-three million, six hundred twenty-eight thousand, two hundred thirty-two".