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142212432252 = 223112294704659
BaseRepresentation
bin1000010001110010000…
…1011000000101111100
3111121002000210002020110
42010130201120011330
54312222340313002
6145155333550020
713163104505052
oct2043441300574
9447060702213
10142212432252
1155348235250
122368a7a5310
13105450572c7
146c513c41d2
153a75096e6c
hex211c85817c

142212432252 has 48 divisors (see below), whose sum is σ = 363576124800. Its totient is φ = 42906480960.

The previous prime is 142212432251. The next prime is 142212432277. The reversal of 142212432252 is 252234212241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142212432251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2322102 + ... + 2382557.

It is an arithmetic number, because the mean of its divisors is an integer number (7574502600).

Almost surely, 2142212432252 is an apocalyptic number.

142212432252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142212432252 is an abundant number, since it is smaller than the sum of its proper divisors (221363692548).

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

142212432252 is a wasteful number, since it uses less digits than its factorization.

142212432252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4704906 (or 4704904 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

Adding to 142212432252 its reverse (252234212241), we get a palindrome (394446644493).

The spelling of 142212432252 in words is "one hundred forty-two billion, two hundred twelve million, four hundred thirty-two thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 229 458 687 916 1374 2519 2748 5038 7557 10076 15114 30228 4704659 9409318 14113977 18818636 28227954 51751249 56455908 103502498 155253747 207004996 310507494 621014988 1077366911 2154733822 3232100733 4309467644 6464201466 11851036021 12928402932 23702072042 35553108063 47404144084 71106216126 142212432252