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220420248 = 23337892789
BaseRepresentation
bin11010010001101…
…01100010011000
3120100202111201220
431020311202120
5422411421443
633512212040
75314353426
oct1510654230
9510674656
10220420248
1110346aaa4
126199a020
1336886aa9
14213ba116
151453ea83
hexd235898

220420248 has 64 divisors (see below), whose sum is σ = 572508000. Its totient is φ = 70659072.

The previous prime is 220420243. The next prime is 220420253. The reversal of 220420248 is 842024022.

220420248 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (220420243) and next prime (220420253).

It is a super-3 number, since 3×2204202483 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220420241) 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, 77638 + ... + 80426.

Almost surely, 2220420248 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 220420248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286254000).

220420248 is an abundant number, since it is smaller than the sum of its proper divisors (352087752).

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

220420248 is a wasteful number, since it uses less digits than its factorization.

220420248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924 (or 2920 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 220420248 is about 14846.5567725315. The cubic root of 220420248 is about 604.0652167055.

The spelling of 220420248 in words is "two hundred twenty million, four hundred twenty thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 24 37 74 89 111 148 178 222 267 296 356 444 534 712 888 1068 2136 2789 3293 5578 6586 8367 9879 11156 13172 16734 19758 22312 26344 33468 39516 66936 79032 103193 206386 248221 309579 412772 496442 619158 744663 825544 992884 1238316 1489326 1985768 2476632 2978652 5957304 9184177 18368354 27552531 36736708 55105062 73473416 110210124 220420248