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2281469490 = 234531432113
BaseRepresentation
bin1000011111111100…
…0111011000110010
312212222222122210000
42013333013120302
514133024010430
61014215450430
7110352112356
oct20777073062
95788878700
102281469490
11a70914883
12538086a16
132a4887861
14179007466
15d5460e60
hex87fc7632

2281469490 has 160 divisors (see below), whose sum is σ = 6482843136. Its totient is φ = 574801920.

The previous prime is 2281469473. The next prime is 2281469501. The reversal of 2281469490 is 949641822.

2281469490 is a `hidden beast` number, since 22 + 81 + 4 + 69 + 490 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1078674 + ... + 1080786.

Almost surely, 22281469490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2281469490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3241421568).

2281469490 is an abundant number, since it is smaller than the sum of its proper divisors (4201373646).

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

2281469490 is a wasteful number, since it uses less digits than its factorization.

2281469490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206 (or 2197 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 2281469490 is about 47764.7306074262. The cubic root of 2281469490 is about 1316.4515750408.

The spelling of 2281469490 in words is "two billion, two hundred eighty-one million, four hundred sixty-nine thousand, four hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 31 43 45 54 62 81 86 90 93 129 135 155 162 186 215 258 270 279 310 387 405 430 465 558 645 774 810 837 930 1161 1290 1333 1395 1674 1935 2113 2322 2511 2666 2790 3483 3870 3999 4185 4226 5022 5805 6339 6665 6966 7998 8370 10565 11610 11997 12555 12678 13330 17415 19017 19995 21130 23994 25110 31695 34830 35991 38034 39990 57051 59985 63390 65503 71982 90859 95085 107973 114102 119970 131006 171153 179955 181718 190170 196509 215946 272577 285255 327515 342306 359910 393018 454295 539865 545154 570510 589527 655030 817731 855765 908590 982545 1079730 1179054 1362885 1635462 1711530 1768581 1965090 2453193 2725770 2816629 2947635 3537162 4088655 4906386 5305743 5633258 5895270 7359579 8177310 8449887 8842905 10611486 12265965 14083145 14719158 16899774 17685810 24531930 25349661 26528715 28166290 36797895 42249435 50699322 53057430 73595790 76048983 84498870 126748305 152097966 228146949 253496610 380244915 456293898 760489830 1140734745 2281469490