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10072530 = 2325138609
BaseRepresentation
bin100110011011…
…000111010010
3200221201220200
4212123013102
510034310110
6555520030
7151420656
oct46330722
920851820
1010072530
11575a706
123459016
1321188a0
1414a2a66
15d3e6c0
hex99b1d2

10072530 has 48 divisors (see below), whose sum is σ = 28206360. Its totient is φ = 2479104.

The previous prime is 10072519. The next prime is 10072537. The reversal of 10072530 is 3527001.

10072530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4915089 + 5157441 = 2217^2 + 2271^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (10072537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3135 + ... + 5474.

Almost surely, 210072530 is an apocalyptic number.

10072530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10072530 is an abundant number, since it is smaller than the sum of its proper divisors (18133830).

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

10072530 is a wasteful number, since it uses less digits than its factorization.

10072530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8635 (or 8632 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 10072530 is about 3173.7249408227. The cubic root of 10072530 is about 215.9630852554.

Adding to 10072530 its reverse (3527001), we get a palindrome (13599531).

The spelling of 10072530 in words is "ten million, seventy-two thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 30 39 45 65 78 90 117 130 195 234 390 585 1170 8609 17218 25827 43045 51654 77481 86090 111917 129135 154962 223834 258270 335751 387405 559585 671502 774810 1007253 1119170 1678755 2014506 3357510 5036265 10072530