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1468728 = 233220399
BaseRepresentation
bin101100110100100111000
32202121201100
411212210320
5333444403
651251400
715325002
oct5464470
92677640
101468728
11913528
125a9b60
133c5691
142a3372
151e02a3
hex166938

1468728 has 24 divisors (see below), whose sum is σ = 3978000. Its totient is φ = 489552.

The previous prime is 1468723. The next prime is 1468729. The reversal of 1468728 is 8278641.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1468692 and 1468701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1468723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10128 + ... + 10271.

It is an arithmetic number, because the mean of its divisors is an integer number (165750).

21468728 is an apocalyptic number.

1468728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1468728 is an abundant number, since it is smaller than the sum of its proper divisors (2509272).

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

1468728 is a wasteful number, since it uses less digits than its factorization.

1468728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20411 (or 20404 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 1468728 is about 1211.9108878131. The cubic root of 1468728 is about 113.6703310433.

The spelling of 1468728 in words is "one million, four hundred sixty-eight thousand, seven hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 20399 40798 61197 81596 122394 163192 183591 244788 367182 489576 734364 1468728