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13741720 = 235343543
BaseRepresentation
bin110100011010…
…111010011000
3221212011002121
4310122322120
512004213340
61210311024
7224542216
oct64327230
927764077
1013741720
1178363a3
124728474
132b019c5
141b79cb6
15131694a
hexd1ae98

13741720 has 16 divisors (see below), whose sum is σ = 30918960. Its totient is φ = 5496672.

The previous prime is 13741709. The next prime is 13741723. The reversal of 13741720 is 2714731.

It is a happy number.

13741720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13741723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171732 + ... + 171811.

It is an arithmetic number, because the mean of its divisors is an integer number (1932435).

Almost surely, 213741720 is an apocalyptic number.

13741720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13741720 is an abundant number, since it is smaller than the sum of its proper divisors (17177240).

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

13741720 is a wasteful number, since it uses less digits than its factorization.

13741720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343554 (or 343550 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 13741720 is about 3706.9826004447. The cubic root of 13741720 is about 239.5228947652.

It can be divided in two parts, 137417 and 20, that multiplied together give a triangular number (2748340 = T2344).

The spelling of 13741720 in words is "thirteen million, seven hundred forty-one thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 343543 687086 1374172 1717715 2748344 3435430 6870860 13741720