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220078030 = 2523956861
BaseRepresentation
bin11010001111000…
…01111111001110
3120100010010022011
431013201333032
5422314444110
633501011434
75311426624
oct1507417716
9510103264
10220078030
11103256977
1261853b7a
13367970b3
142132b514
15144c348a
hexd1e1fce

220078030 has 16 divisors (see below), whose sum is σ = 413364384. Its totient is φ = 84203680.

The previous prime is 220077989. The next prime is 220078087. The reversal of 220078030 is 30870022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220077992 and 220078010.

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, 478201 + ... + 478660.

It is an arithmetic number, because the mean of its divisors is an integer number (25835274).

Almost surely, 2220078030 is an apocalyptic number.

220078030 is a deficient number, since it is larger than the sum of its proper divisors (193286354).

220078030 is a wasteful number, since it uses less digits than its factorization.

220078030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956891.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 220078030 is about 14835.0271317581. The cubic root of 220078030 is about 603.7524368103.

The spelling of 220078030 in words is "two hundred twenty million, seventy-eight thousand, thirty".

Divisors: 1 2 5 10 23 46 115 230 956861 1913722 4784305 9568610 22007803 44015606 110039015 220078030