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13534480 = 245169181
BaseRepresentation
bin110011101000…
…010100010000
3221110121211001
4303220110100
511431100410
61202031344
7223020061
oct63502420
927417731
1013534480
117704723
124648554
132a5b58b
141b24568
1512c533a
hexce8510

13534480 has 20 divisors (see below), whose sum is σ = 31467852. Its totient is φ = 5413760.

The previous prime is 13534453. The next prime is 13534481. The reversal of 13534480 is 8443531.

It can be written as a sum of positive squares in 2 ways, for example, as 3268864 + 10265616 = 1808^2 + 3204^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13534481) 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, 84511 + ... + 84670.

Almost surely, 213534480 is an apocalyptic number.

13534480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13534480 is an abundant number, since it is smaller than the sum of its proper divisors (17933372).

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

13534480 is a wasteful number, since it uses less digits than its factorization.

13534480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169194 (or 169188 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 13534480 is about 3678.9237556655. The cubic root of 13534480 is about 238.3127024486.

It can be divided in two parts, 135344 and 80, that added together give a square (135424 = 3682).

The spelling of 13534480 in words is "thirteen million, five hundred thirty-four thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 169181 338362 676724 845905 1353448 1691810 2706896 3383620 6767240 13534480