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1401425 = 52291933
BaseRepresentation
bin101010110001001010001
32122012101122
411112021101
5324321200
650012025
714624534
oct5261121
92565348
101401425
11877a03
12577015
133a0b5c
14286a1b
151ca385
hex156251

1401425 has 12 divisors (see below), whose sum is σ = 1798620. Its totient is φ = 1081920.

The previous prime is 1401409. The next prime is 1401437. The reversal of 1401425 is 5241041.

It can be written as a sum of positive squares in 6 ways, for example, as 1936 + 1399489 = 44^2 + 1183^2 .

It is not a de Polignac number, because 1401425 - 24 = 1401409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242 + ... + 1691.

It is an arithmetic number, because the mean of its divisors is an integer number (149885).

21401425 is an apocalyptic number.

It is an amenable number.

1401425 is a deficient number, since it is larger than the sum of its proper divisors (397195).

1401425 is a wasteful number, since it uses less digits than its factorization.

1401425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972 (or 1967 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1401425 is about 1183.8179758730. The cubic root of 1401425 is about 111.9068368553.

Adding to 1401425 its reverse (5241041), we get a palindrome (6642466).

The spelling of 1401425 in words is "one million, four hundred one thousand, four hundred twenty-five".

Divisors: 1 5 25 29 145 725 1933 9665 48325 56057 280285 1401425