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234502021 = 1325171867
BaseRepresentation
bin11011111101000…
…11011110000101
3121100020221022001
431332203132011
5440013031041
635134105301
75545143235
oct1576433605
9540227261
10234502021
11110408926
126664b231
13397774c0
1423203cc5
15158c2131
hexdfa3785

234502021 has 8 divisors (see below), whose sum is σ = 253550304. Its totient is φ = 215598000.

The previous prime is 234501989. The next prime is 234502067. The reversal of 234502021 is 120205432.

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 234502021 - 25 = 234501989 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 234502021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234572021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32671 + ... + 39196.

It is an arithmetic number, because the mean of its divisors is an integer number (31693788).

Almost surely, 2234502021 is an apocalyptic number.

It is an amenable number.

234502021 is a deficient number, since it is larger than the sum of its proper divisors (19048283).

234502021 is a wasteful number, since it uses less digits than its factorization.

234502021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72131.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 234502021 is about 15313.4588189605. The cubic root of 234502021 is about 616.6643800581.

Adding to 234502021 its reverse (120205432), we get a palindrome (354707453).

The spelling of 234502021 in words is "two hundred thirty-four million, five hundred two thousand, twenty-one".

Divisors: 1 13 251 3263 71867 934271 18038617 234502021