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13721701 = 75713433
BaseRepresentation
bin110100010110…
…000001100101
3221211010122011
4310112001211
512003043301
61210034221
7224426650
oct64260145
927733564
1013721701
117822354
124718971
132ac5866
141b72897
151310a51
hexd16065

13721701 has 8 divisors (see below), whose sum is σ = 15713984. Its totient is φ = 11737440.

The previous prime is 13721693. The next prime is 13721713. The reversal of 13721701 is 10712731.

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 13721701 - 23 = 13721693 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 (13721761) 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, 2281 + ... + 5713.

It is an arithmetic number, because the mean of its divisors is an integer number (1964248).

Almost surely, 213721701 is an apocalyptic number.

It is an amenable number.

13721701 is a deficient number, since it is larger than the sum of its proper divisors (1992283).

13721701 is an equidigital number, since it uses as much as digits as its factorization.

13721701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4011.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 13721701 is about 3704.2814417914. The cubic root of 13721701 is about 239.4065255582.

The spelling of 13721701 in words is "thirteen million, seven hundred twenty-one thousand, seven hundred one".

Divisors: 1 7 571 3433 3997 24031 1960243 13721701