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14990509 = 473131019
BaseRepresentation
bin111001001011…
…110010101101
31001012121010001
4321023302231
512314144014
61253144301
7241263052
oct71136255
931177101
1014990509
118509656
12502b091
13314b231
141dc3029
1514b1974
hexe4bcad

14990509 has 8 divisors (see below), whose sum is σ = 15373440. Its totient is φ = 14610336.

The previous prime is 14990491. The next prime is 14990527. The reversal of 14990509 is 90509941.

It is an interprime number because it is at equal distance from previous prime (14990491) and next prime (14990527).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14990509 - 217 = 14859437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14990539) 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, 14202 + ... + 15220.

It is an arithmetic number, because the mean of its divisors is an integer number (1921680).

Almost surely, 214990509 is an apocalyptic number.

It is an amenable number.

14990509 is a deficient number, since it is larger than the sum of its proper divisors (382931).

14990509 is a wasteful number, since it uses less digits than its factorization.

14990509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 14990509 is about 3871.7578694955. The cubic root of 14990509 is about 246.5691813057.

The spelling of 14990509 in words is "fourteen million, nine hundred ninety thousand, five hundred nine".

Divisors: 1 47 313 1019 14711 47893 318947 14990509