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212514541420 = 22559180097069
BaseRepresentation
bin1100010111101011011…
…0101000111101101100
3202022112111121020222111
43011322312220331230
511440212210311140
6241343340053404
721232210540336
oct3057266507554
9668474536874
10212514541420
1182143a11415
123522a834264
1317069c5a77c
14a40019c456
1557dbe817ea
hex317ada8f6c

212514541420 has 24 divisors (see below), whose sum is σ = 453844616400. Its totient is φ = 83565039552.

The previous prime is 212514541399. The next prime is 212514541423. The reversal of 212514541420 is 24145415212.

It is not an unprimeable number, because it can be changed into a prime (212514541423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90047355 + ... + 90049714.

It is an arithmetic number, because the mean of its divisors is an integer number (18910192350).

Almost surely, 2212514541420 is an apocalyptic number.

212514541420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212514541420 is an abundant number, since it is smaller than the sum of its proper divisors (241330074980).

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

212514541420 is a wasteful number, since it uses less digits than its factorization.

212514541420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180097137 (or 180097135 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 212514541420 its reverse (24145415212), we get a palindrome (236659956632).

The spelling of 212514541420 in words is "two hundred twelve billion, five hundred fourteen million, five hundred forty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 59 118 236 295 590 1180 180097069 360194138 720388276 900485345 1800970690 3601941380 10625727071 21251454142 42502908284 53128635355 106257270710 212514541420