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2202011988 = 22311531631931
BaseRepresentation
bin1000001101000000…
…0000100101010100
312200110110210120120
42003100000211110
514002203340423
61002300431540
7105365536011
oct20320004524
95613423516
102202011988
11a2aa84220
125155485b0
13291287397
1416c642708
15cd4b7ee3
hex83400954

2202011988 has 96 divisors (see below), whose sum is σ = 5748890112. Its totient is φ = 650332800.

The previous prime is 2202011893. The next prime is 2202012037. The reversal of 2202011988 is 8891102022.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 1139383 + ... + 1141313.

It is an arithmetic number, because the mean of its divisors is an integer number (59884272).

Almost surely, 22202011988 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 2202011988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2874445056).

2202011988 is an abundant number, since it is smaller than the sum of its proper divisors (3546878124).

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

2202011988 is a wasteful number, since it uses less digits than its factorization.

2202011988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165 (or 2163 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 2202011988 is about 46925.6005608879. The cubic root of 2202011988 is about 1300.9878070141.

The spelling of 2202011988 in words is "two billion, two hundred two million, eleven thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 53 66 106 132 159 163 212 318 326 489 583 636 652 978 1166 1749 1793 1931 1956 2332 3498 3586 3862 5379 5793 6996 7172 7724 8639 10758 11586 17278 21241 21516 23172 25917 34556 42482 51834 63723 84964 95029 102343 103668 127446 190058 204686 254892 285087 307029 314753 380116 409372 570174 614058 629506 944259 1125773 1140348 1228116 1259012 1888518 2251546 3377319 3462283 3777036 4503092 6754638 6924566 10386849 13509276 13849132 16681909 20773698 33363818 41547396 50045727 66727636 100091454 183500999 200182908 367001998 550502997 734003996 1101005994 2202011988