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14021030420 = 2253891802189
BaseRepresentation
bin11010000111011011…
…11111001000010100
31100012011001010212222
431003231333020110
5212203340433140
610235143201512
71004311535465
oct150355771024
940164033788
1014021030420
115a45562751
122873746298
131425a93307
149701ccd6c
15570dd95b5
hex343b7f214

14021030420 has 24 divisors (see below), whose sum is σ = 29519872200. Its totient is φ = 5593991552.

The previous prime is 14021030417. The next prime is 14021030431. The reversal of 14021030420 is 2403012041.

It can be written as a sum of positive squares in 4 ways, for example, as 3822454276 + 10198576144 = 61826^2 + 100988^2 .

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, 893315 + ... + 908874.

It is an arithmetic number, because the mean of its divisors is an integer number (1229994675).

Almost surely, 214021030420 is an apocalyptic number.

14021030420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14021030420 is an abundant number, since it is smaller than the sum of its proper divisors (15498841780).

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

14021030420 is a wasteful number, since it uses less digits than its factorization.

14021030420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802587 (or 1802585 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 14021030420 its reverse (2403012041), we get a palindrome (16424042461).

The spelling of 14021030420 in words is "fourteen billion, twenty-one million, thirty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 389 778 1556 1945 3890 7780 1802189 3604378 7208756 9010945 18021890 36043780 701051521 1402103042 2804206084 3505257605 7010515210 14021030420