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220739796 = 223319971109
BaseRepresentation
bin11010010100000…
…11100011010100
3120101100202002000
431022003203110
5423002133141
633523115300
75320154154
oct1512034324
9511322060
10220739796
11103669092
1261b12b30
1336969384
1421460764
15145a45b6
hexd2838d4

220739796 has 96 divisors (see below), whose sum is σ = 609168000. Its totient is φ = 68926464.

The previous prime is 220739789. The next prime is 220739801. The reversal of 220739796 is 697937022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198490 + ... + 199598.

It is an arithmetic number, because the mean of its divisors is an integer number (6345500).

Almost surely, 2220739796 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 220739796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304584000).

220739796 is an abundant number, since it is smaller than the sum of its proper divisors (388428204).

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

220739796 is a wasteful number, since it uses less digits than its factorization.

220739796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238 (or 1230 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 220739796 is about 14857.3145621946. The cubic root of 220739796 is about 604.3569845592.

The spelling of 220739796 in words is "two hundred twenty million, seven hundred thirty-nine thousand, seven hundred ninety-six".

Divisors: 1 2 3 4 6 9 12 18 19 27 36 38 54 57 76 97 108 114 171 194 228 291 342 388 513 582 684 873 1026 1109 1164 1746 1843 2052 2218 2619 3327 3492 3686 4436 5238 5529 6654 7372 9981 10476 11058 13308 16587 19962 21071 22116 29943 33174 39924 42142 49761 59886 63213 66348 84284 99522 107573 119772 126426 189639 199044 215146 252852 322719 379278 430292 568917 645438 758556 968157 1137834 1290876 1936314 2043887 2275668 2904471 3872628 4087774 5808942 6131661 8175548 11617884 12263322 18394983 24526644 36789966 55184949 73579932 110369898 220739796