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8012342220 = 22354310872857
BaseRepresentation
bin1110111011001001…
…01010001111001100
3202200101122011020120
413131210222033030
5112402124422340
63403020144540
7402360533211
oct73544521714
922611564216
108012342220
113441838333
121677398150
139a8c74acc
1456019bb08
1531d6374d0
hex1dd92a3cc

8012342220 has 96 divisors (see below), whose sum is σ = 22985453568. Its totient is φ = 2084285952.

The previous prime is 8012342207. The next prime is 8012342231. The reversal of 8012342220 is 222432108.

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, 2803032 + ... + 2805888.

It is an arithmetic number, because the mean of its divisors is an integer number (239431808).

Almost surely, 28012342220 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 8012342220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11492726784).

8012342220 is an abundant number, since it is smaller than the sum of its proper divisors (14973111348).

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

8012342220 is a wasteful number, since it uses less digits than its factorization.

8012342220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3999 (or 3997 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 8012342220 is about 89511.6876167576. The cubic root of 8012342220 is about 2001.0279898612.

Adding to 8012342220 its reverse (222432108), we get a palindrome (8234774328).

The spelling of 8012342220 in words is "eight billion, twelve million, three hundred forty-two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 43 60 86 129 172 215 258 430 516 645 860 1087 1290 2174 2580 2857 3261 4348 5435 5714 6522 8571 10870 11428 13044 14285 16305 17142 21740 28570 32610 34284 42855 46741 57140 65220 85710 93482 122851 140223 171420 186964 233705 245702 280446 368553 467410 491404 560892 614255 701115 737106 934820 1228510 1402230 1474212 1842765 2457020 2804460 3105559 3685530 6211118 7371060 9316677 12422236 15527795 18633354 31055590 37266708 46583385 62111180 93166770 133539037 186333540 267078074 400617111 534156148 667695185 801234222 1335390370 1602468444 2003085555 2670780740 4006171110 8012342220