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230210121545 = 5128935719181
BaseRepresentation
bin1101011001100110010…
…1111010111101001001
3211000012201221212102222
43112121211322331021
512232432242342140
6253431305503425
722426551514055
oct3263145727511
9730181855388
10230210121545
11896a46806a8
1238748aa1b75
131892a0a3541
14b1dc3c4c65
155ec57565b5
hex359997af49

230210121545 has 8 divisors (see below), whose sum is σ = 276466468680. Its totient is φ = 184025215360.

The previous prime is 230210121529. The next prime is 230210121563. The reversal of 230210121545 is 545121012032.

It can be written as a sum of positive squares in 4 ways, for example, as 123754093369 + 106456028176 = 351787^2 + 326276^2 .

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

It is not a de Polignac number, because 230210121545 - 24 = 230210121529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17853146 + ... + 17866035.

It is an arithmetic number, because the mean of its divisors is an integer number (34558308585).

Almost surely, 2230210121545 is an apocalyptic number.

It is an amenable number.

230210121545 is a deficient number, since it is larger than the sum of its proper divisors (46256347135).

230210121545 is a wasteful number, since it uses less digits than its factorization.

230210121545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35720475.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 230210121545 its reverse (545121012032), we get a palindrome (775331133577).

The spelling of 230210121545 in words is "two hundred thirty billion, two hundred ten million, one hundred twenty-one thousand, five hundred forty-five".

Divisors: 1 5 1289 6445 35719181 178595905 46042024309 230210121545