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20213032002012 = 22322780512019317
BaseRepresentation
bin1001001100010001101101…
…00101111010000111011100
32122120100100221202111010100
410212020312211322013130
510122132242143031022
6110553423321141100
74154225530120563
oct446106645720734
978510327674110
1020213032002012
116493331681233
12232550762a790
13b381084cabb5
144dc45d038bda
15250bc247e1ac
hex12623697a1dc

20213032002012 has 36 divisors (see below), whose sum is σ = 51094262176776. Its totient is φ = 6737649765600.

The previous prime is 20213032001999. The next prime is 20213032002047. The reversal of 20213032002012 is 21020023031202.

20213032002012 is a `hidden beast` number, since 202 + 130 + 320 + 0 + 2 + 0 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×202130320020122 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9000178 + ... + 11019494.

It is an arithmetic number, because the mean of its divisors is an integer number (1419285060466).

Almost surely, 220213032002012 is an apocalyptic number.

It is an amenable number.

20213032002012 is an abundant number, since it is smaller than the sum of its proper divisors (30881230174764).

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

20213032002012 is a wasteful number, since it uses less digits than its factorization.

20213032002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297378 (or 2297373 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20213032002012 its reverse (21020023031202), we get a palindrome (41233055033214).

The spelling of 20213032002012 in words is "twenty trillion, two hundred thirteen billion, thirty-two million, two thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 278051 556102 834153 1112204 1668306 2019317 2502459 3336612 4038634 5004918 6057951 8077268 10009836 12115902 18173853 24231804 36347706 72695412 561473111167 1122946222334 1684419333501 2245892444668 3368838667002 5053258000503 6737677334004 10106516001006 20213032002012