Search a number
-
+
198432124 = 221119972447
BaseRepresentation
bin10111101001111…
…01010101111100
3111211101101200221
423310331111330
5401244311444
631405031124
74626434212
oct1364752574
9454341627
10198432124
11a2011aa0
12565554a4
1332158777
141c4d4cb2
1512649a84
hexbd3d57c

198432124 has 48 divisors (see below), whose sum is σ = 403038720. Its totient is φ = 84533760.

The previous prime is 198432089. The next prime is 198432127. The reversal of 198432124 is 421234891.

It is a self number, because there is not a number n which added to its sum of digits gives 198432124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198432127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79869 + ... + 82315.

It is an arithmetic number, because the mean of its divisors is an integer number (8396640).

Almost surely, 2198432124 is an apocalyptic number.

It is an amenable number.

198432124 is an abundant number, since it is smaller than the sum of its proper divisors (204606596).

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

198432124 is a wasteful number, since it uses less digits than its factorization.

198432124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578 (or 2576 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 198432124 is about 14086.5937685446. The cubic root of 198432124 is about 583.2713711238.

The spelling of 198432124 in words is "one hundred ninety-eight million, four hundred thirty-two thousand, one hundred twenty-four".

Divisors: 1 2 4 11 19 22 38 44 76 97 194 209 388 418 836 1067 1843 2134 2447 3686 4268 4894 7372 9788 20273 26917 40546 46493 53834 81092 92986 107668 185972 237359 474718 511423 949436 1022846 2045692 2610949 4509821 5221898 9019642 10443796 18039284 49608031 99216062 198432124