Search a number
-
+
229750198181 = 7223147181421
BaseRepresentation
bin1101010111111000101…
…1011100111110100101
3210222000200112100012022
43111332023130332211
512231012022320211
6253313520032525
722412265314450
oct3257613347645
9728020470168
10229750198181
1189488aa7449
123863aa62745
1318885a10b3a
14b1972a2497
155e9a1a7bdb
hex357e2dcfa5

229750198181 has 8 divisors (see below), whose sum is σ = 263749108224. Its totient is φ = 196045651440.

The previous prime is 229750198177. The next prime is 229750198201. The reversal of 229750198181 is 181891057922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 229750198181 - 22 = 229750198177 is a prime.

It is a super-2 number, since 2×2297501981812 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229750198481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73589150 + ... + 73592271.

It is an arithmetic number, because the mean of its divisors is an integer number (32968638528).

Almost surely, 2229750198181 is an apocalyptic number.

It is an amenable number.

229750198181 is a deficient number, since it is larger than the sum of its proper divisors (33998910043).

229750198181 is a wasteful number, since it uses less digits than its factorization.

229750198181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147181651.

The product of its (nonzero) digits is 725760, while the sum is 53.

The spelling of 229750198181 in words is "two hundred twenty-nine billion, seven hundred fifty million, one hundred ninety-eight thousand, one hundred eighty-one".

Divisors: 1 7 223 1561 147181421 1030269947 32821456883 229750198181