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30972050 = 2525910499
BaseRepresentation
bin111011000100…
…1100010010010
32011021112122222
41312021202102
530412101200
63023501042
7524154344
oct166114222
964245588
1030972050
111653483a
12a457782
136555575
144183294
152abbd85
hex1d89892

30972050 has 24 divisors (see below), whose sum is σ = 58590000. Its totient is φ = 12177680.

The previous prime is 30972049. The next prime is 30972059. The reversal of 30972050 is 5027903.

It is not an unprimeable number, because it can be changed into a prime (30972059) 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, 2300 + ... + 8199.

It is an arithmetic number, because the mean of its divisors is an integer number (2441250).

Almost surely, 230972050 is an apocalyptic number.

30972050 is a deficient number, since it is larger than the sum of its proper divisors (27617950).

30972050 is a wasteful number, since it uses less digits than its factorization.

30972050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10570 (or 10565 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 30972050 is about 5565.2538127205. The cubic root of 30972050 is about 314.0436265401.

Adding to 30972050 its reverse (5027903), we get a palindrome (35999953).

The spelling of 30972050 in words is "thirty million, nine hundred seventy-two thousand, fifty".

Divisors: 1 2 5 10 25 50 59 118 295 590 1475 2950 10499 20998 52495 104990 262475 524950 619441 1238882 3097205 6194410 15486025 30972050