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4689540 = 2232526053
BaseRepresentation
bin10001111000111010000100
322211020211200
4101320322010
52200031130
6244302500
754601062
oct21707204
98736750
104689540
112713359
1216a1a30
13c8269b
148a1032
15629760
hex478e84

4689540 has 36 divisors (see below), whose sum is σ = 14225484. Its totient is φ = 1250496.

The previous prime is 4689481. The next prime is 4689547. The reversal of 4689540 is 459864.

It can be written as a sum of positive squares in 2 ways, for example, as 2883204 + 1806336 = 1698^2 + 1344^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4689495 and 4689504.

It is not an unprimeable number, because it can be changed into a prime (4689547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12847 + ... + 13206.

Almost surely, 24689540 is an apocalyptic number.

It is an amenable number.

4689540 is an abundant number, since it is smaller than the sum of its proper divisors (9535944).

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

4689540 is a wasteful number, since it uses less digits than its factorization.

4689540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26068 (or 26063 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 4689540 is about 2165.5345760343. The cubic root of 4689540 is about 167.3825121011.

The spelling of 4689540 in words is "four million, six hundred eighty-nine thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 26053 52106 78159 104212 130265 156318 234477 260530 312636 390795 468954 521060 781590 937908 1172385 1563180 2344770 4689540