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13660330 = 257271879
BaseRepresentation
bin110100000111…
…000010101010
3221201000110011
4310013002222
511444112310
61204442134
7224053015
oct64070252
927630404
1013660330
117790232
1246a934a
132aa3948
141b5837c
1512ec78a
hexd070aa

13660330 has 16 divisors (see below), whose sum is σ = 24635520. Its totient is φ = 5453712.

The previous prime is 13660319. The next prime is 13660331. The reversal of 13660330 is 3306631.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13660331) 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, 6331 + ... + 8209.

It is an arithmetic number, because the mean of its divisors is an integer number (1539720).

Almost surely, 213660330 is an apocalyptic number.

13660330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13660330 is a deficient number, since it is larger than the sum of its proper divisors (10975190).

13660330 is a wasteful number, since it uses less digits than its factorization.

13660330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613.

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 13660330 is about 3695.9883657826. The cubic root of 13660330 is about 239.0490728643.

Adding to 13660330 its reverse (3306631), we get a palindrome (16966961).

The spelling of 13660330 in words is "thirteen million, six hundred sixty thousand, three hundred thirty".

Divisors: 1 2 5 10 727 1454 1879 3635 3758 7270 9395 18790 1366033 2732066 6830165 13660330