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234061440 = 27351771101
BaseRepresentation
bin11011111001101…
…11111010000000
3121022102112221020
431330313322000
5434404431230
635120425440
75541326604
oct1574677200
9538375836
10234061440
11110137908
1266478280
1339651ac2
142312b504
1515836810
hexdf37e80

234061440 has 256 divisors, whose sum is σ = 809015040. Its totient is φ = 57344000.

The previous prime is 234061403. The next prime is 234061441. The reversal of 234061440 is 44160432.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 234061440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234061441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2317390 + ... + 2317490.

It is an arithmetic number, because the mean of its divisors is an integer number (3160215).

Almost surely, 2234061440 is an apocalyptic number.

234061440 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 234061440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404507520).

234061440 is an abundant number, since it is smaller than the sum of its proper divisors (574953600).

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

234061440 is a wasteful number, since it uses less digits than its factorization.

234061440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 234061440 is about 15299.0666381972. The cubic root of 234061440 is about 616.2779428238.

The spelling of 234061440 in words is "two hundred thirty-four million, sixty-one thousand, four hundred forty".