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30425263 = 1129127751
BaseRepresentation
bin111010000010…
…0000010101111
32010020202121121
41310010002233
530242102023
63004041411
7516416251
oct164040257
963222547
1030425263
11161a0a50
12a233267
1363c371b
14407dcd1
152a0ed5d
hex1d040af

30425263 has 16 divisors (see below), whose sum is σ = 34652160. Its totient is φ = 26460000.

The previous prime is 30425221. The next prime is 30425267. The reversal of 30425263 is 36252403.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30425263 - 217 = 30294191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30425267) 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 15 ways as a sum of consecutive naturals, for example, 40138 + ... + 40888.

It is an arithmetic number, because the mean of its divisors is an integer number (2165760).

Almost surely, 230425263 is an apocalyptic number.

30425263 is a deficient number, since it is larger than the sum of its proper divisors (4226897).

30425263 is a wasteful number, since it uses less digits than its factorization.

30425263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 30425263 is about 5515.9099883881. The cubic root of 30425263 is about 312.1845794454.

Adding to 30425263 its reverse (36252403), we get a palindrome (66677666).

The spelling of 30425263 in words is "thirty million, four hundred twenty-five thousand, two hundred sixty-three".

Divisors: 1 11 29 127 319 751 1397 3683 8261 21779 40513 95377 239569 1049147 2765933 30425263