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1057270 = 25105727
BaseRepresentation
bin100000010000111110110
31222201022011
410002013312
5232313040
634354434
711662264
oct4020766
91881264
101057270
11662385
1242ba1a
132b0306
141d7434
1515d3ea
hex1021f6

1057270 has 8 divisors (see below), whose sum is σ = 1903104. Its totient is φ = 422904.

The previous prime is 1057249. The next prime is 1057271. The reversal of 1057270 is 727501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10572702 = 2235639705800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057271) 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, 52854 + ... + 52873.

It is an arithmetic number, because the mean of its divisors is an integer number (237888).

21057270 is an apocalyptic number.

1057270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1057270 is a deficient number, since it is larger than the sum of its proper divisors (845834).

1057270 is a wasteful number, since it uses less digits than its factorization.

1057270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105734.

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 1057270 is about 1028.2363541521. The cubic root of 1057270 is about 101.8736741895.

It can be divided in two parts, 1057 and 270, that multiplied together give a triangular number (285390 = T755).

The spelling of 1057270 in words is "one million, fifty-seven thousand, two hundred seventy".

Divisors: 1 2 5 10 105727 211454 528635 1057270