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409972 = 22176029
BaseRepresentation
bin1100100000101110100
3202211101011
41210011310
5101104342
612442004
73325153
oct1440564
9684334
10409972
11260022
12179304
131147b4
14a959a
1581717
hex64174

409972 has 12 divisors (see below), whose sum is σ = 759780. Its totient is φ = 192896.

The previous prime is 409967. The next prime is 409987. The reversal of 409972 is 279904.

409972 is nontrivially palindromic in base 14.

It can be written as a sum of positive squares in 2 ways, for example, as 355216 + 54756 = 596^2 + 234^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2947 + ... + 3082.

It is an arithmetic number, because the mean of its divisors is an integer number (63315).

2409972 is an apocalyptic number.

It is an amenable number.

409972 is a deficient number, since it is larger than the sum of its proper divisors (349808).

409972 is a wasteful number, since it uses less digits than its factorization.

409972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6050 (or 6048 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 409972 is about 640.2905590433. The cubic root of 409972 is about 74.2878972309.

The spelling of 409972 in words is "four hundred nine thousand, nine hundred seventy-two".

Divisors: 1 2 4 17 34 68 6029 12058 24116 102493 204986 409972