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30232621 = 413112371
BaseRepresentation
bin111001101010…
…1000000101101
32002212222100201
41303111000231
530214420441
62555553501
7514654516
oct163250055
962788321
1030232621
111607a241
12a15b891
136356b33
14402da0d
1529c2c31
hex1cd502d

30232621 has 8 divisors (see below), whose sum is σ = 31082688. Its totient is φ = 29388000.

The previous prime is 30232597. The next prime is 30232627. The reversal of 30232621 is 12623203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30232621 - 29 = 30232109 is a prime.

It is a super-2 number, since 2×302326212 = 1828022745059282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30232627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11566 + ... + 13936.

It is an arithmetic number, because the mean of its divisors is an integer number (3885336).

Almost surely, 230232621 is an apocalyptic number.

It is an amenable number.

30232621 is a deficient number, since it is larger than the sum of its proper divisors (850067).

30232621 is a wasteful number, since it uses less digits than its factorization.

30232621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 30232621 is about 5498.4198639245. The cubic root of 30232621 is about 311.5243031673.

Adding to 30232621 its reverse (12623203), we get a palindrome (42855824).

It can be divided in two parts, 302 and 32621, that added together give a palindrome (32923).

The spelling of 30232621 in words is "thirty million, two hundred thirty-two thousand, six hundred twenty-one".

Divisors: 1 41 311 2371 12751 97211 737381 30232621