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10072428 = 223839369
BaseRepresentation
bin100110011011…
…000101101100
3200221201202220
4212123011230
510034304203
6555515340
7151420452
oct46330554
920851686
1010072428
11575a623
123458b50
132118822
1414a29d2
15d3e653
hex99b16c

10072428 has 12 divisors (see below), whose sum is σ = 23502360. Its totient is φ = 3357472.

The previous prime is 10072423. The next prime is 10072453. The reversal of 10072428 is 82427001.

10072428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 10072398 and 10072407.

It is not an unprimeable number, because it can be changed into a prime (10072423) 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, 419673 + ... + 419696.

It is an arithmetic number, because the mean of its divisors is an integer number (1958530).

Almost surely, 210072428 is an apocalyptic number.

It is an amenable number.

10072428 is an abundant number, since it is smaller than the sum of its proper divisors (13429932).

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

10072428 is a wasteful number, since it uses less digits than its factorization.

10072428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839376 (or 839374 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 10072428 is about 3173.7088713365. The cubic root of 10072428 is about 215.9623562657.

Adding to 10072428 its reverse (82427001), we get a palindrome (92499429).

The spelling of 10072428 in words is "ten million, seventy-two thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 839369 1678738 2518107 3357476 5036214 10072428