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30893875 = 5359271
BaseRepresentation
bin111010111011…
…0011100110011
32011010120102121
41311312130303
530402101000
63022055111
7523410415
oct165663463
964116377
1030893875
1116491031
12a41a497
136528acc
1441629b5
152aa3b1a
hex1d76733

30893875 has 24 divisors (see below), whose sum is σ = 39772512. Its totient is φ = 23954000.

The previous prime is 30893851. The next prime is 30893881. The reversal of 30893875 is 57839803.

It is a happy number.

It is not a de Polignac number, because 30893875 - 215 = 30861107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 435090 + ... + 435160.

It is an arithmetic number, because the mean of its divisors is an integer number (1657188).

Almost surely, 230893875 is an apocalyptic number.

30893875 is a deficient number, since it is larger than the sum of its proper divisors (8878637).

30893875 is an frugal number, since it uses more digits than its factorization.

30893875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 30893875 is about 5558.2258860179. The cubic root of 30893875 is about 313.7791833301.

The spelling of 30893875 in words is "thirty million, eight hundred ninety-three thousand, eight hundred seventy-five".

Divisors: 1 5 25 59 71 125 295 355 1475 1775 3481 4189 7375 8875 17405 20945 87025 104725 247151 435125 523625 1235755 6178775 30893875