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30527945 = 57872227
BaseRepresentation
bin111010001110…
…1000111001001
32010102222110122
41310131013021
530303343240
63010153025
7520324520
oct164350711
963388418
1030527945
1116261108
12a282775
13642b396
1440a94b7
152a304b5
hex1d1d1c9

30527945 has 8 divisors (see below), whose sum is σ = 41866944. Its totient is φ = 20933424.

The previous prime is 30527933. The next prime is 30527951. The reversal of 30527945 is 54972503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30527945 - 24 = 30527929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 872227 = 30527945 / (3 + 0 + 5 + 2 + 7 + 9 + 4 + 5).

It is an unprimeable number.

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, 436079 + ... + 436148.

It is an arithmetic number, because the mean of its divisors is an integer number (5233368).

Almost surely, 230527945 is an apocalyptic number.

30527945 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30527945 is a deficient number, since it is larger than the sum of its proper divisors (11338999).

30527945 is an equidigital number, since it uses as much as digits as its factorization.

30527945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872239.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 30527945 is about 5525.2099507621. The cubic root of 30527945 is about 312.5353815939.

The spelling of 30527945 in words is "thirty million, five hundred twenty-seven thousand, nine hundred forty-five".

Divisors: 1 5 7 35 872227 4361135 6105589 30527945