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14651021 = 7111491277
BaseRepresentation
bin110111111000…
…111010001101
31000120100102102
4313320322031
512222313041
61242004445
7235350230
oct67707215
930510372
1014651021
1182a7590
124aa6725
13305c858
141d35417
15144609b
hexdf8e8d

14651021 has 16 divisors (see below), whose sum is σ = 18403200. Its totient is φ = 11330880.

The previous prime is 14651011. The next prime is 14651047. The reversal of 14651021 is 12015641.

It is not a de Polignac number, because 14651021 - 218 = 14388877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 14650984 and 14651002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14651011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10835 + ... + 12111.

It is an arithmetic number, because the mean of its divisors is an integer number (1150200).

Almost surely, 214651021 is an apocalyptic number.

14651021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14651021 is a deficient number, since it is larger than the sum of its proper divisors (3752179).

14651021 is a wasteful number, since it uses less digits than its factorization.

14651021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 14651021 is about 3827.6652152455. The cubic root of 14651021 is about 244.6936111692.

Adding to 14651021 its reverse (12015641), we get a palindrome (26666662).

The spelling of 14651021 in words is "fourteen million, six hundred fifty-one thousand, twenty-one".

Divisors: 1 7 11 77 149 1043 1277 1639 8939 11473 14047 98329 190273 1331911 2093003 14651021