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20089162620 = 22335211117623
BaseRepresentation
bin10010101101011010…
…000100101101111100
31220212001022012101000
4102231122010231330
5312120311200440
613121232250300
71310554031142
oct225532045574
956761265330
1020089162620
11857989923a
123a879a0990
131b81cc5697
14d88095592
157c89ce730
hex4ad684b7c

20089162620 has 96 divisors (see below), whose sum is σ = 62532771840. Its totient is φ = 5354268480.

The previous prime is 20089162609. The next prime is 20089162673. The reversal of 20089162620 is 2626198002.

It is a happy number.

20089162620 is a `hidden beast` number, since 2 + 0 + 0 + 8 + 9 + 1 + 626 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 1131129 + ... + 1148751.

It is an arithmetic number, because the mean of its divisors is an integer number (651383040).

Almost surely, 220089162620 is an apocalyptic number.

20089162620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20089162620 is an abundant number, since it is smaller than the sum of its proper divisors (42443609220).

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

20089162620 is a wasteful number, since it uses less digits than its factorization.

20089162620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19752 (or 19744 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 20089162620 in words is "twenty billion, eighty-nine million, one hundred sixty-two thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 2111 4222 6333 8444 10555 12666 17623 18999 21110 25332 31665 35246 37998 42220 52869 56997 63330 70492 75996 88115 94995 105738 113994 126660 158607 176230 189990 211476 227988 264345 284985 317214 352460 379980 475821 528690 569970 634428 793035 951642 1057380 1139940 1586070 1903284 2379105 3172140 4758210 9516420 37202153 74404306 111606459 148808612 186010765 223212918 334819377 372021530 446425836 558032295 669638754 744043060 1004458131 1116064590 1339277508 1674096885 2008916262 2232129180 3348193770 4017832524 5022290655 6696387540 10044581310 20089162620