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220967420 = 22589124139
BaseRepresentation
bin11010010101110…
…11000111111100
3120101210022022112
431022323013330
5423031424140
633532033152
75322122612
oct1512730774
9511708275
10220967420
11103804103
12620027b8
1336a18b6b
14214bd6b2
15145ebc65
hexd2bb1fc

220967420 has 24 divisors (see below), whose sum is σ = 469249200. Its totient is φ = 87393152.

The previous prime is 220967419. The next prime is 220967431. The reversal of 220967420 is 24769022.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 60290 + ... + 63849.

It is an arithmetic number, because the mean of its divisors is an integer number (19552050).

Almost surely, 2220967420 is an apocalyptic number.

220967420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220967420 is an abundant number, since it is smaller than the sum of its proper divisors (248281780).

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

220967420 is a wasteful number, since it uses less digits than its factorization.

220967420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124237 (or 124235 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 220967420 is about 14864.9729229488. The cubic root of 220967420 is about 604.5646482102.

The spelling of 220967420 in words is "two hundred twenty million, nine hundred sixty-seven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 89 178 356 445 890 1780 124139 248278 496556 620695 1241390 2482780 11048371 22096742 44193484 55241855 110483710 220967420