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401479 = 1389347
BaseRepresentation
bin1100010000001000111
3202101201121
41202001013
5100321404
612334411
73261331
oct1420107
9671647
10401479
11254701
12174407
13110980
14a6451
157de54
hex62047

401479 has 8 divisors (see below), whose sum is σ = 438480. Its totient is φ = 365376.

The previous prime is 401477. The next prime is 401507. The reversal of 401479 is 974104.

401479 = T242 + T243 + ... + T254.

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

It is a cyclic number.

It is not a de Polignac number, because 401479 - 21 = 401477 is a prime.

It is a super-2 number, since 2×4014792 = 322370774882, which contains 22 as substring.

It is a Duffinian number.

401479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 984 + ... + 1330.

It is an arithmetic number, because the mean of its divisors is an integer number (54810).

2401479 is an apocalyptic number.

401479 is a deficient number, since it is larger than the sum of its proper divisors (37001).

401479 is a wasteful number, since it uses less digits than its factorization.

401479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 401479 is about 633.6237053646. The cubic root of 401479 is about 73.7713296536.

The spelling of 401479 in words is "four hundred one thousand, four hundred seventy-nine".

Divisors: 1 13 89 347 1157 4511 30883 401479