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100000020012 = 223191747251057
BaseRepresentation
bin101110100100001110…
…1110011011000101100
3100120010011200100200220
41131020131303120230
53114300001120022
6113534523251340
710140044100564
oct1351035633054
9316104610626
10100000020012
113945644a142
1217469979b50
139578818899
144ba9067da4
15290424085c
hex174877362c

100000020012 has 48 divisors (see below), whose sum is σ = 245755655040. Its totient is φ = 31560751872.

The previous prime is 100000019909. The next prime is 100000020013. The reversal of 100000020012 is 210020000001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is not an unprimeable number, because it can be changed into a prime (100000020013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272788 + ... + 523844.

It is an arithmetic number, because the mean of its divisors is an integer number (5119909480).

Almost surely, 2100000020012 is an apocalyptic number.

100000020012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100000020012 is an abundant number, since it is smaller than the sum of its proper divisors (145755635028).

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

100000020012 is a wasteful number, since it uses less digits than its factorization.

100000020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252830 (or 252828 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 100000020012 its reverse (210020000001), we get a palindrome (310020020013).

The spelling of 100000020012 in words is "one hundred billion, twenty thousand, twelve".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 1747 3494 5241 6988 10482 20964 33193 66386 99579 132772 199158 251057 398316 502114 753171 1004228 1506342 3012684 4770083 9540166 14310249 19080332 28620498 57240996 438596579 877193158 1315789737 1754386316 2631579474 5263158948 8333335001 16666670002 25000005003 33333340004 50000010006 100000020012