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14507690 = 253153883
BaseRepresentation
bin110111010101…
…111010101010
31000022001210212
4313111322222
512203221230
61234541122
7234212321
oct67257252
930261725
1014507690
11820992a
124a377a2
13300c542
141cd90b8
151418895
hexdd5eaa

14507690 has 32 divisors (see below), whose sum is σ = 27495936. Its totient is φ = 5503680.

The previous prime is 14507677. The next prime is 14507699. The reversal of 14507690 is 9670541.

It is a happy number.

It is a super-2 number, since 2×145076902 = 420946138272200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (14507699) 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, 15989 + ... + 16871.

It is an arithmetic number, because the mean of its divisors is an integer number (859248).

Almost surely, 214507690 is an apocalyptic number.

14507690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14507690 is a deficient number, since it is larger than the sum of its proper divisors (12988246).

14507690 is a wasteful number, since it uses less digits than its factorization.

14507690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 14507690 is about 3808.8961655577. The cubic root of 14507690 is about 243.8930486214.

The spelling of 14507690 in words is "fourteen million, five hundred seven thousand, six hundred ninety".

Divisors: 1 2 5 10 31 53 62 106 155 265 310 530 883 1643 1766 3286 4415 8215 8830 16430 27373 46799 54746 93598 136865 233995 273730 467990 1450769 2901538 7253845 14507690