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230605215125 = 531844841721
BaseRepresentation
bin1101011011000100100…
…1000101010110010101
3211001020021101200221112
43112301021011112111
512234234413341000
6253534422024405
722442416662305
oct3266111052625
9731207350845
10230605215125
11898876a531a
1238839278105
1318990bb781c
14b238a6d605
155eea29b235
hex35b1245595

230605215125 has 8 divisors (see below), whose sum is σ = 287795308632. Its totient is φ = 184484172000.

The previous prime is 230605215109. The next prime is 230605215173. The reversal of 230605215125 is 521512506032.

It can be written as a sum of positive squares in 4 ways, for example, as 7052136529 + 223553078596 = 83977^2 + 472814^2 .

It is not a de Polignac number, because 230605215125 - 24 = 230605215109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 230605215091 and 230605215100.

It is a congruent number.

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, 922420736 + ... + 922420985.

It is an arithmetic number, because the mean of its divisors is an integer number (35974413579).

Almost surely, 2230605215125 is an apocalyptic number.

230605215125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

230605215125 is a deficient number, since it is larger than the sum of its proper divisors (57190093507).

230605215125 is an equidigital number, since it uses as much as digits as its factorization.

230605215125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844841736 (or 1844841726 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 230605215125 in words is "two hundred thirty billion, six hundred five million, two hundred fifteen thousand, one hundred twenty-five".

Divisors: 1 5 25 125 1844841721 9224208605 46121043025 230605215125