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220010020 = 225151263277
BaseRepresentation
bin11010001110100…
…01011000100100
3120022222200000021
431013101120210
5422310310040
633455324524
75311024426
oct1507213044
9508880007
10220010020
1110320a86a
1261820744
1336772159
1421310816
15144ad24a
hexd1d1624

220010020 has 48 divisors (see below), whose sum is σ = 468534528. Its totient is φ = 86774400.

The previous prime is 220009963. The next prime is 220010033. The reversal of 220010020 is 20010022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220009985 and 220010012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 794122 + ... + 794398.

It is an arithmetic number, because the mean of its divisors is an integer number (9761136).

Almost surely, 2220010020 is an apocalyptic number.

220010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220010020 is an abundant number, since it is smaller than the sum of its proper divisors (248524508).

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

220010020 is a wasteful number, since it uses less digits than its factorization.

220010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700 (or 698 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 220010020 is about 14832.7347444765. The cubic root of 220010020 is about 603.6902385169.

Adding to 220010020 its reverse (20010022), we get a palindrome (240020042).

The spelling of 220010020 in words is "two hundred twenty million, ten thousand, twenty".

Divisors: 1 2 4 5 10 20 151 263 277 302 526 554 604 755 1052 1108 1315 1385 1510 2630 2770 3020 5260 5540 39713 41827 72851 79426 83654 145702 158852 167308 198565 209135 291404 364255 397130 418270 728510 794260 836540 1457020 11000501 22001002 44002004 55002505 110005010 220010020