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20401324130 = 25111731351929
BaseRepresentation
bin10011000000000000…
…111000000001100010
31221122210200122110102
4103000000320001202
5313240214333010
613212223102402
71321364252045
oct230000700142
957583618412
1020401324130
11871a019860
123b54441a02
131c01890b35
14db7712c5c
157e60e1ba5
hex4c0038062

20401324130 has 64 divisors (see below), whose sum is σ = 43785722880. Its totient is φ = 6757017600.

The previous prime is 20401324087. The next prime is 20401324187. The reversal of 20401324130 is 3142310402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117995 + ... + 233934.

It is an arithmetic number, because the mean of its divisors is an integer number (684151920).

Almost surely, 220401324130 is an apocalyptic number.

20401324130 is an abundant number, since it is smaller than the sum of its proper divisors (23384398750).

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

20401324130 is a wasteful number, since it uses less digits than its factorization.

20401324130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351995.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20401324130 its reverse (3142310402), we get a palindrome (23543634532).

The spelling of 20401324130 in words is "twenty billion, four hundred one million, three hundred twenty-four thousand, one hundred thirty".

Divisors: 1 2 5 10 11 17 22 31 34 55 62 85 110 155 170 187 310 341 374 527 682 935 1054 1705 1870 2635 3410 5270 5797 11594 28985 57970 351929 703858 1759645 3519290 3871219 5982793 7742438 10909799 11965586 19356095 21819598 29913965 38712190 54548995 59827930 65810723 109097990 120007789 131621446 185466583 240015578 329053615 370933166 600038945 658107230 927332915 1200077890 1854665830 2040132413 4080264826 10200662065 20401324130