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30882253 = 229134857
BaseRepresentation
bin111010111001…
…1100111001101
32011002222111011
41311303213031
530401213003
63021525221
7523331503
oct165634715
964088434
1030882253
1116483326
12a413811
13652372c
14415c673
152aa046d
hex1d739cd

30882253 has 4 divisors (see below), whose sum is σ = 31017340. Its totient is φ = 30747168.

The previous prime is 30882227. The next prime is 30882259. The reversal of 30882253 is 35228803.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15342889 + 15539364 = 3917^2 + 3942^2 .

It is a cyclic number.

It is not a de Polignac number, because 30882253 - 25 = 30882221 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 (30882259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67200 + ... + 67657.

It is an arithmetic number, because the mean of its divisors is an integer number (7754335).

Almost surely, 230882253 is an apocalyptic number.

It is an amenable number.

30882253 is a deficient number, since it is larger than the sum of its proper divisors (135087).

30882253 is a wasteful number, since it uses less digits than its factorization.

30882253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135086.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 30882253 is about 5557.1803101933. The cubic root of 30882253 is about 313.7398314191.

The spelling of 30882253 in words is "thirty million, eight hundred eighty-two thousand, two hundred fifty-three".

Divisors: 1 229 134857 30882253