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1401725 = 521319227
BaseRepresentation
bin101010110001101111101
32122012210202
411112031331
5324323400
650013245
714625443
oct5261575
92565722
101401725
11878156
12577225
133a1030
14286b93
151ca4d5
hex15637d

1401725 has 24 divisors (see below), whose sum is σ = 1979040. Its totient is φ = 976320.

The previous prime is 1401721. The next prime is 1401737. The reversal of 1401725 is 5271041.

It is not a de Polignac number, because 1401725 - 22 = 1401721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1401697 and 1401706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6062 + ... + 6288.

It is an arithmetic number, because the mean of its divisors is an integer number (82460).

21401725 is an apocalyptic number.

It is an amenable number.

1401725 is a deficient number, since it is larger than the sum of its proper divisors (577315).

1401725 is a wasteful number, since it uses less digits than its factorization.

1401725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 1401725 is about 1183.9446777616. The cubic root of 1401725 is about 111.9148215033.

Adding to 1401725 its reverse (5271041), we get a palindrome (6672766).

The spelling of 1401725 in words is "one million, four hundred one thousand, seven hundred twenty-five".

Divisors: 1 5 13 19 25 65 95 227 247 325 475 1135 1235 2951 4313 5675 6175 14755 21565 56069 73775 107825 280345 1401725