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230673240 = 233257239383
BaseRepresentation
bin11011011111111…
…00101101011000
3121002001102012100
431233330231120
5433023020430
634520043400
75500455510
oct1557745530
9532042170
10230673240
11109233246
1265303560
1338a36855
14228c8840
15153b7960
hexdbfcb58

230673240 has 192 divisors, whose sum is σ = 862617600. Its totient is φ = 52367616.

The previous prime is 230673217. The next prime is 230673241. The reversal of 230673240 is 42376032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230673241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 602089 + ... + 602471.

It is an arithmetic number, because the mean of its divisors is an integer number (4492800).

Almost surely, 2230673240 is an apocalyptic number.

230673240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230673240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431308800).

230673240 is an abundant number, since it is smaller than the sum of its proper divisors (631944360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230673240 is a wasteful number, since it uses less digits than its factorization.

230673240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 639 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 230673240 is about 15187.9307346327. The cubic root of 230673240 is about 613.2897955338.

The spelling of 230673240 in words is "two hundred thirty million, six hundred seventy-three thousand, two hundred forty".