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10120230012 = 2234831174571
BaseRepresentation
bin10010110110011011…
…00111010001111100
3222010021222221200210
421123031213101330
5131211234330022
64352115352420
7505534351524
oct113315472174
928107887623
1010120230012
114323673662
121b652b2710
13c53894ca9
146c00dc684
153e370ba0c
hex25b36747c

10120230012 has 24 divisors (see below), whose sum is σ = 23618893312. Its totient is φ = 3372692400.

The previous prime is 10120230011. The next prime is 10120230019. The reversal of 10120230012 is 21003202101.

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

It is a self number, because there is not a number n which added to its sum of digits gives 10120230012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120230011) 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 7 ways as a sum of consecutive naturals, for example, 29314 + ... + 145257.

Almost surely, 210120230012 is an apocalyptic number.

10120230012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10120230012 is an abundant number, since it is smaller than the sum of its proper divisors (13498663300).

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

10120230012 is a wasteful number, since it uses less digits than its factorization.

10120230012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179409 (or 179407 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10120230012 its reverse (21003202101), we get a palindrome (31123432113).

The spelling of 10120230012 in words is "ten billion, one hundred twenty million, two hundred thirty thousand, twelve".

Divisors: 1 2 3 4 6 12 4831 9662 14493 19324 28986 57972 174571 349142 523713 698284 1047426 2094852 843352501 1686705002 2530057503 3373410004 5060115006 10120230012