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30010520 = 235799497
BaseRepresentation
bin111001001111…
…0110010011000
32002110200200202
41302132302120
530140314040
62551121332
7513041141
oct162366230
962420622
1030010520
1115a38391
12a073248
1362a9a07
143db2ac8
15297c015
hex1c9ec98

30010520 has 32 divisors (see below), whose sum is σ = 68385600. Its totient is φ = 11851008.

The previous prime is 30010507. The next prime is 30010523. The reversal of 30010520 is 2501003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30010523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1589 + ... + 7908.

It is an arithmetic number, because the mean of its divisors is an integer number (2137050).

Almost surely, 230010520 is an apocalyptic number.

It is an amenable number.

30010520 is an abundant number, since it is smaller than the sum of its proper divisors (38375080).

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

30010520 is a wasteful number, since it uses less digits than its factorization.

30010520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9587 (or 9583 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 30010520 is about 5478.1858310941. The cubic root of 30010520 is about 310.7595664463.

Adding to 30010520 its reverse (2501003), we get a palindrome (32511523).

The spelling of 30010520 in words is "thirty million, ten thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 79 158 316 395 632 790 1580 3160 9497 18994 37988 47485 75976 94970 189940 379880 750263 1500526 3001052 3751315 6002104 7502630 15005260 30010520