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102020201112 = 2334725189963
BaseRepresentation
bin101111100000011100…
…0001011101010011000
3100202022222000012012010
41133000320023222120
53132414132413422
6114511210545520
710241104254444
oct1370070135230
9322288005163
10102020201112
113a2a28200a5
12179324382a0
13980b20a90b
144d1b497824
1529c178cb0c
hex17c0e0ba98

102020201112 has 32 divisors (see below), whose sum is σ = 255058735680. Its totient is φ = 34005636000.

The previous prime is 102020201053. The next prime is 102020201113. The reversal of 102020201112 is 211102020201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020201113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1089043 + ... + 1179005.

It is an arithmetic number, because the mean of its divisors is an integer number (7970585490).

Almost surely, 2102020201112 is an apocalyptic number.

102020201112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102020201112 is an abundant number, since it is smaller than the sum of its proper divisors (153038534568).

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

102020201112 is a wasteful number, since it uses less digits than its factorization.

102020201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137223 (or 137219 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102020201112 its reverse (211102020201), we get a palindrome (313122221313).

The spelling of 102020201112 in words is "one hundred two billion, twenty million, two hundred one thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 47251 89963 94502 141753 179926 189004 269889 283506 359852 378008 539778 567012 719704 1079556 1134024 2159112 4250841713 8501683426 12752525139 17003366852 25505050278 34006733704 51010100556 102020201112