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220932192 = 25313211839
BaseRepresentation
bin11010010101100…
…10100001100000
3120101201111222210
431022302201200
5423024312232
633531202120
75321615115
oct1512624140
9511644883
10220932192
1110378a698
1261ba6340
1336a05b10
14214b090c
15145e15cc
hexd2b2860

220932192 has 96 divisors (see below), whose sum is σ = 628266240. Its totient is φ = 67576320.

The previous prime is 220932169. The next prime is 220932193. The reversal of 220932192 is 291239022.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×2209321922 = 97622066923849728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220932193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262909 + ... + 263747.

It is an arithmetic number, because the mean of its divisors is an integer number (6544440).

Almost surely, 2220932192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220932192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314133120).

220932192 is an abundant number, since it is smaller than the sum of its proper divisors (407334048).

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

220932192 is a wasteful number, since it uses less digits than its factorization.

220932192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076 (or 1068 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 220932192 is about 14863.7879425132. The cubic root of 220932192 is about 604.5325186843.

The spelling of 220932192 in words is "two hundred twenty million, nine hundred thirty-two thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 78 96 104 156 208 211 312 416 422 624 633 839 844 1248 1266 1678 1688 2517 2532 2743 3356 3376 5034 5064 5486 6712 6752 8229 10068 10128 10907 10972 13424 16458 20136 20256 21814 21944 26848 32721 32916 40272 43628 43888 65442 65832 80544 87256 87776 130884 131664 174512 177029 261768 263328 349024 354058 523536 531087 708116 1047072 1062174 1416232 2124348 2301377 2832464 4248696 4602754 5664928 6904131 8497392 9205508 13808262 16994784 18411016 27616524 36822032 55233048 73644064 110466096 220932192