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20413021412 = 2271938370341
BaseRepresentation
bin10011000000101101…
…011111110011100100
31221200121200221010002
4103000231133303210
5313301213141122
613213321520432
71321565550650
oct230055376344
957617627102
1020413021412
118725689133
123b58343118
131c041280c4
14db90b9a60
157e7152992
hex4c0b5fce4

20413021412 has 24 divisors (see below), whose sum is σ = 42974783040. Its totient is φ = 8287993440.

The previous prime is 20413021379. The next prime is 20413021441. The reversal of 20413021412 is 21412031402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19184639 + ... + 19185702.

It is an arithmetic number, because the mean of its divisors is an integer number (1790615960).

Almost surely, 220413021412 is an apocalyptic number.

It is an amenable number.

20413021412 is an abundant number, since it is smaller than the sum of its proper divisors (22561761628).

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

20413021412 is a wasteful number, since it uses less digits than its factorization.

20413021412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38370371 (or 38370369 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20413021412 its reverse (21412031402), we get a palindrome (41825052814).

The spelling of 20413021412 in words is "twenty billion, four hundred thirteen million, twenty-one thousand, four hundred twelve".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 38370341 76740682 153481364 268592387 537184774 729036479 1074369548 1458072958 2916145916 5103255353 10206510706 20413021412