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4328072 = 237261181
BaseRepresentation
bin10000100000101010001000
322010212222222
4100200222020
52101444242
6232433212
751534200
oct20405210
98125888
104328072
112496821
121548808
13b86cb8
14809400
155a75d2
hex420a88

4328072 has 48 divisors (see below), whose sum is σ = 9647820. Its totient is φ = 1814400.

The previous prime is 4328069. The next prime is 4328087. The reversal of 4328072 is 2708234.

It can be written as a sum of positive squares in 2 ways, for example, as 2775556 + 1552516 = 1666^2 + 1246^2 .

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23822 + ... + 24002.

Almost surely, 24328072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4328072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4823910).

4328072 is an abundant number, since it is smaller than the sum of its proper divisors (5319748).

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

4328072 is a wasteful number, since it uses less digits than its factorization.

4328072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 4328072 is about 2080.4018842522. The cubic root of 4328072 is about 162.9664326728.

The spelling of 4328072 in words is "four million, three hundred twenty-eight thousand, seventy-two".

Divisors: 1 2 4 7 8 14 28 49 56 61 98 122 181 196 244 362 392 427 488 724 854 1267 1448 1708 2534 2989 3416 5068 5978 8869 10136 11041 11956 17738 22082 23912 35476 44164 70952 77287 88328 154574 309148 541009 618296 1082018 2164036 4328072