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102020212112 = 24713193687833
BaseRepresentation
bin101111100000011100…
…0001110010110010000
3100202022222000202021112
41133000320032112100
53132414133241422
6114511211112452
710241104331510
oct1370070162620
9322288022245
10102020212112
113a2a2828395
1217932442728
13980b212920
144d1b49b840
1529c1790ee2
hex17c0e0e590

102020212112 has 80 divisors (see below), whose sum is σ = 256083192960. Its totient is φ = 38235442176.

The previous prime is 102020212081. The next prime is 102020212123. The reversal of 102020212112 is 211212020201.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1816253 + ... + 1871580.

It is an arithmetic number, because the mean of its divisors is an integer number (3201039912).

Almost surely, 2102020212112 is an apocalyptic number.

It is an amenable number.

102020212112 is an abundant number, since it is smaller than the sum of its proper divisors (154062980848).

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

102020212112 is a wasteful number, since it uses less digits than its factorization.

102020212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3687880 (or 3687874 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102020212112 its reverse (211212020201), we get a palindrome (313232232313).

The spelling of 102020212112 in words is "one hundred two billion, twenty million, two hundred twelve thousand, one hundred twelve".

Divisors: 1 2 4 7 8 13 14 16 19 26 28 38 52 56 76 91 104 112 133 152 182 208 247 266 304 364 494 532 728 988 1064 1456 1729 1976 2128 3458 3952 6916 13832 27664 3687833 7375666 14751332 25814831 29502664 47941829 51629662 59005328 70068827 95883658 103259324 140137654 191767316 206518648 280275308 335592803 383534632 413037296 490481789 560550616 671185606 767069264 910894751 980963578 1121101232 1342371212 1821789502 1961927156 2684742424 3643579004 3923854312 5369484848 6376263257 7287158008 7847708624 12752526514 14574316016 25505053028 51010106056 102020212112