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1057480 = 23526437
BaseRepresentation
bin100000010001011001000
31222201120221
410002023020
5232314410
634355424
711663014
oct4021310
91881527
101057480
11662556
1242bb74
132b0438
141d7544
1515d4da
hex1022c8

1057480 has 16 divisors (see below), whose sum is σ = 2379420. Its totient is φ = 422976.

The previous prime is 1057477. The next prime is 1057487. The reversal of 1057480 is 847501.

It can be written as a sum of positive squares in 2 ways, for example, as 1044484 + 12996 = 1022^2 + 114^2 .

It is a super-2 number, since 2×10574802 = 2236527900800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13179 + ... + 13258.

21057480 is an apocalyptic number.

1057480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1057480 is an abundant number, since it is smaller than the sum of its proper divisors (1321940).

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

1057480 is a wasteful number, since it uses less digits than its factorization.

1057480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26448 (or 26444 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1057480 is about 1028.3384656814. The cubic root of 1057480 is about 101.8804186210.

The spelling of 1057480 in words is "one million, fifty-seven thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 26437 52874 105748 132185 211496 264370 528740 1057480