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1350720 = 26325767
BaseRepresentation
bin101001001110001000000
32112121211200
411021301000
5321210340
644541200
714323650
oct5116100
92477750
101350720
118428a8
12551800
13383a57
14272360
151ba330
hex149c40

1350720 has 168 divisors, whose sum is σ = 5388864. Its totient is φ = 304128.

The previous prime is 1350709. The next prime is 1350731. The reversal of 1350720 is 270531.

It is an interprime number because it is at equal distance from previous prime (1350709) and next prime (1350731).

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1350693 and 1350702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20127 + ... + 20193.

21350720 is an apocalyptic number.

1350720 is a gapful number since it is divisible by the number (10) 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 1350720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2694432).

1350720 is an abundant number, since it is smaller than the sum of its proper divisors (4038144).

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

1350720 is a wasteful number, since it uses less digits than its factorization.

1350720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 1350720 is about 1162.2048012291. The cubic root of 1350720 is about 110.5405896352.

The spelling of 1350720 in words is "one million, three hundred fifty thousand, seven hundred twenty".