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30874255 = 573251337
BaseRepresentation
bin111010111000…
…1101010001111
32011002120111221
41311301222033
530400434010
63021424211
7523266256
oct165615217
964076457
1030874255
1116478315
12a40b067
13651cbb9
14415979d
152a9cdda
hex1d71a8f

30874255 has 16 divisors (see below), whose sum is σ = 37818144. Its totient is φ = 24192000.

The previous prime is 30874247. The next prime is 30874267. The reversal of 30874255 is 55247803.

It is a happy number.

It is not a de Polignac number, because 30874255 - 23 = 30874247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30874255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91447 + ... + 91783.

It is an arithmetic number, because the mean of its divisors is an integer number (2363634).

Almost surely, 230874255 is an apocalyptic number.

30874255 is a deficient number, since it is larger than the sum of its proper divisors (6943889).

30874255 is a wasteful number, since it uses less digits than its factorization.

30874255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 30874255 is about 5556.4606540495. The cubic root of 30874255 is about 313.7127445804.

The spelling of 30874255 in words is "thirty million, eight hundred seventy-four thousand, two hundred fifty-five".

Divisors: 1 5 73 251 337 365 1255 1685 18323 24601 84587 91615 123005 422935 6174851 30874255