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20414231420 = 2251192791961
BaseRepresentation
bin10011000000110010…
…000111001101111100
31221200200222101221012
4103000302013031330
5313302020401140
613213403454352
71321612050452
oct230062071574
957620871835
1020414231420
118726335240
123b588273b8
131c0445ca9b
14db93129d2
157e72e1265
hex4c0c8737c

20414231420 has 24 divisors (see below), whose sum is σ = 46767148848. Its totient is φ = 7423356800.

The previous prime is 20414231419. The next prime is 20414231473. The reversal of 20414231420 is 2413241402.

It is a congruent number.

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, 46395761 + ... + 46396200.

It is an arithmetic number, because the mean of its divisors is an integer number (1948631202).

Almost surely, 220414231420 is an apocalyptic number.

20414231420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20414231420 is an abundant number, since it is smaller than the sum of its proper divisors (26352917428).

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

20414231420 is a wasteful number, since it uses less digits than its factorization.

20414231420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92791981 (or 92791979 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20414231420 its reverse (2413241402), we get a palindrome (22827472822).

The spelling of 20414231420 in words is "twenty billion, four hundred fourteen million, two hundred thirty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 92791961 185583922 371167844 463959805 927919610 1020711571 1855839220 2041423142 4082846284 5103557855 10207115710 20414231420