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230232621 = 3438321503
BaseRepresentation
bin11011011100100…
…01001000101101
3121001020000210010
431232101020231
5432414420441
634502403433
75463642063
oct1556211055
9531200703
10230232621
11108a621a3
1265130579
1338911128
1422812033
151532c116
hexdb9122d

230232621 has 16 divisors (see below), whose sum is σ = 317915136. Its totient is φ = 148105776.

The previous prime is 230232619. The next prime is 230232637. The reversal of 230232621 is 126232032.

230232621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 230232621 - 21 = 230232619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230232721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45 + ... + 21458.

It is an arithmetic number, because the mean of its divisors is an integer number (19869696).

Almost surely, 2230232621 is an apocalyptic number.

It is an amenable number.

230232621 is a deficient number, since it is larger than the sum of its proper divisors (87682515).

230232621 is a wasteful number, since it uses less digits than its factorization.

230232621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21632.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 230232621 is about 15173.4182371673. The cubic root of 230232621 is about 612.8990561242.

Adding to 230232621 its reverse (126232032), we get a palindrome (356464653).

The spelling of 230232621 in words is "two hundred thirty million, two hundred thirty-two thousand, six hundred twenty-one".

Divisors: 1 3 43 83 129 249 3569 10707 21503 64509 924629 1784749 2773887 5354247 76744207 230232621