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14809940 = 2253123887
BaseRepresentation
bin111000011111…
…101101010100
31000212102102022
4320133231110
512242404230
61245232312
7236611445
oct70375524
930772368
1014809940
1183a5a22
124b62698
1330b6ca2
141d772cc
1514781e5
hexe1fb54

14809940 has 24 divisors (see below), whose sum is σ = 32105472. Its totient is φ = 5732640.

The previous prime is 14809937. The next prime is 14809957. The reversal of 14809940 is 4990841.

It is a self number, because there is not a number n which added to its sum of digits gives 14809940.

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, 11324 + ... + 12563.

It is an arithmetic number, because the mean of its divisors is an integer number (1337728).

Almost surely, 214809940 is an apocalyptic number.

14809940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14809940 is an abundant number, since it is smaller than the sum of its proper divisors (17295532).

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

14809940 is a wasteful number, since it uses less digits than its factorization.

14809940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23927 (or 23925 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 14809940 is about 3848.3684854754. The cubic root of 14809940 is about 245.5751584971.

The spelling of 14809940 in words is "fourteen million, eight hundred nine thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 23887 47774 95548 119435 238870 477740 740497 1480994 2961988 3702485 7404970 14809940