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32145142120 = 23571324733571
BaseRepresentation
bin11101111011111111…
…111111000101101000
310001222020202102011021
4131323333333011220
51011313124021440
622433421542224
72215405125340
oct357377770550
9101866672137
1032145142120
11126a6105063
126291414974
13305392a170
1417ad2c5d20
15c8210b84a
hex77bfff168

32145142120 has 128 divisors (see below), whose sum is σ = 89078250240. Its totient is φ = 10166446080.

The previous prime is 32145142093. The next prime is 32145142129. The reversal of 32145142120 is 2124154123.

It is not an unprimeable number, because it can be changed into a prime (32145142129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8999935 + ... + 9003505.

It is an arithmetic number, because the mean of its divisors is an integer number (695923830).

Almost surely, 232145142120 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 32145142120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44539125120).

32145142120 is an abundant number, since it is smaller than the sum of its proper divisors (56933108120).

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

32145142120 is a wasteful number, since it uses less digits than its factorization.

32145142120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6075 (or 6071 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 32145142120 its reverse (2124154123), we get a palindrome (34269296243).

The spelling of 32145142120 in words is "thirty-two billion, one hundred forty-five million, one hundred forty-two thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 13 14 20 26 28 35 40 52 56 65 70 91 104 130 140 182 260 280 364 455 520 728 910 1820 2473 3571 3640 4946 7142 9892 12365 14284 17311 17855 19784 24730 24997 28568 32149 34622 35710 46423 49460 49994 64298 69244 71420 86555 92846 98920 99988 124985 128596 138488 142840 160745 173110 185692 199976 225043 232115 249970 257192 321490 324961 346220 371384 450086 464230 499940 642980 649922 692440 900172 928460 999880 1125215 1285960 1299844 1624805 1800344 1856920 2250430 2599688 3249610 4500860 6499220 8831083 9001720 12998440 17662166 35324332 44155415 61817581 70648664 88310830 114804079 123635162 176621660 229608158 247270324 309087905 353243320 459216316 494540648 574020395 618175810 803628553 918432632 1148040790 1236351620 1607257106 2296081580 2472703240 3214514212 4018142765 4592163160 6429028424 8036285530 16072571060 32145142120