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30415532 = 2271139613
BaseRepresentation
bin111010000000…
…1101010101100
32010020021021012
41310001222230
530241244112
63003524352
7516346010
oct164015254
963207235
1030415532
1116194704
12a2296b8
1363bc174
14407a540
152a0c022
hex1d01aac

30415532 has 24 divisors (see below), whose sum is σ = 61375776. Its totient is φ = 12918528.

The previous prime is 30415513. The next prime is 30415537. The reversal of 30415532 is 23551403.

It is a junction number, because it is equal to n+sod(n) for n = 30415498 and 30415507.

It is not an unprimeable number, because it can be changed into a prime (30415537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1643 + ... + 7970.

It is an arithmetic number, because the mean of its divisors is an integer number (2557324).

Almost surely, 230415532 is an apocalyptic number.

It is an amenable number.

30415532 is an abundant number, since it is smaller than the sum of its proper divisors (30960244).

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

30415532 is a wasteful number, since it uses less digits than its factorization.

30415532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9737 (or 9735 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 30415532 is about 5515.0278331120. The cubic root of 30415532 is about 312.1512935970.

Adding to 30415532 its reverse (23551403), we get a palindrome (53966935).

The spelling of 30415532 in words is "thirty million, four hundred fifteen thousand, five hundred thirty-two".

Divisors: 1 2 4 7 14 28 113 226 452 791 1582 3164 9613 19226 38452 67291 134582 269164 1086269 2172538 4345076 7603883 15207766 30415532