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30640150 = 252797757
BaseRepresentation
bin111010011100…
…0100000010110
32010122200101101
41310320200112
530320441100
63012420314
7521302612
oct164704026
963580341
1030640150
1116328442
12a31769a
13646a488
1440d8342
152a5386a
hex1d38816

30640150 has 24 divisors (see below), whose sum is σ = 57719520. Its totient is φ = 12099360.

The previous prime is 30640111. The next prime is 30640151. The reversal of 30640150 is 5104603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30640151) 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 11 ways as a sum of consecutive naturals, for example, 72 + ... + 7828.

It is an arithmetic number, because the mean of its divisors is an integer number (2404980).

Almost surely, 230640150 is an apocalyptic number.

30640150 is a deficient number, since it is larger than the sum of its proper divisors (27079370).

30640150 is a wasteful number, since it uses less digits than its factorization.

30640150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7848 (or 7843 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 30640150 is about 5535.3545505234. The cubic root of 30640150 is about 312.9178197829.

Adding to 30640150 its reverse (5104603), we get a palindrome (35744753).

The spelling of 30640150 in words is "thirty million, six hundred forty thousand, one hundred fifty".

Divisors: 1 2 5 10 25 50 79 158 395 790 1975 3950 7757 15514 38785 77570 193925 387850 612803 1225606 3064015 6128030 15320075 30640150