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30250545 = 3513532927
BaseRepresentation
bin111001101100…
…1011000110001
32002220212221120
41303121120301
530221004140
63000212453
7515061003
oct163313061
962825846
1030250545
1116091756
12a16a129
136362040
144036373
1529c81d0
hex1cd9631

30250545 has 32 divisors (see below), whose sum is σ = 53125632. Its totient is φ = 14606592.

The previous prime is 30250541. The next prime is 30250573. The reversal of 30250545 is 54505203.

It is not a de Polignac number, because 30250545 - 22 = 30250541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30250541) 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 31 ways as a sum of consecutive naturals, for example, 8872 + ... + 11798.

It is an arithmetic number, because the mean of its divisors is an integer number (1660176).

Almost surely, 230250545 is an apocalyptic number.

It is an amenable number.

30250545 is a deficient number, since it is larger than the sum of its proper divisors (22875087).

30250545 is a wasteful number, since it uses less digits than its factorization.

30250545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 30250545 is about 5500.0495452314. The cubic root of 30250545 is about 311.5858554279.

Adding to 30250545 its reverse (54505203), we get a palindrome (84755748).

The spelling of 30250545 in words is "thirty million, two hundred fifty thousand, five hundred forty-five".

Divisors: 1 3 5 13 15 39 53 65 159 195 265 689 795 2067 2927 3445 8781 10335 14635 38051 43905 114153 155131 190255 465393 570765 775655 2016703 2326965 6050109 10083515 30250545