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1252801 = 11113891
BaseRepresentation
bin100110001110111000001
32100122112001
410301313001
5310042201
642504001
713435324
oct4616701
92318461
101252801
11786280
12505001
1334b304
142487bb
1519b301
hex131dc1

1252801 has 4 divisors (see below), whose sum is σ = 1366704. Its totient is φ = 1138900.

The previous prime is 1252799. The next prime is 1252817. The reversal of 1252801 is 1082521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1082521 = 1198411.

It is a cyclic number.

It is not a de Polignac number, because 1252801 - 21 = 1252799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252201) 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, 56935 + ... + 56956.

It is an arithmetic number, because the mean of its divisors is an integer number (341676).

21252801 is an apocalyptic number.

1252801 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1252801 is a deficient number, since it is larger than the sum of its proper divisors (113903).

1252801 is a wasteful number, since it uses less digits than its factorization.

1252801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113902.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1252801 is about 1119.2859330841. The cubic root of 1252801 is about 107.8021354316.

It can be divided in two parts, 125 and 2801, that added together give a triangular number (2926 = T76).

The spelling of 1252801 in words is "one million, two hundred fifty-two thousand, eight hundred one".

Divisors: 1 11 113891 1252801