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10100012080 = 245235489137
BaseRepresentation
bin10010110100000000…
…11111010000110000
3222001212221202220111
421122000133100300
5131141100341310
64350114151104
7505200454234
oct113200372060
928055852814
1010100012080
114313214624
121b5a582494
13c4c636612
146bb5585c4
153e1a6628a
hex25a01f430

10100012080 has 40 divisors (see below), whose sum is σ = 24503512032. Its totient is φ = 3864351744.

The previous prime is 10100011993. The next prime is 10100012081. The reversal of 10100012080 is 8021000101.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×101000120802 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10100012080.

It is not an unprimeable number, because it can be changed into a prime (10100012081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2742729 + ... + 2746408.

Almost surely, 210100012080 is an apocalyptic number.

10100012080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10100012080 is an abundant number, since it is smaller than the sum of its proper divisors (14403499952).

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

10100012080 is a wasteful number, since it uses less digits than its factorization.

10100012080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5489173 (or 5489167 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10100012080 its reverse (8021000101), we get a palindrome (18121012181).

The spelling of 10100012080 in words is "ten billion, one hundred million, twelve thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 23 40 46 80 92 115 184 230 368 460 920 1840 5489137 10978274 21956548 27445685 43913096 54891370 87826192 109782740 126250151 219565480 252500302 439130960 505000604 631250755 1010001208 1262501510 2020002416 2525003020 5050006040 10100012080