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407272 = 2350909
BaseRepresentation
bin1100011011011101000
3202200200011
41203123220
5101013042
612421304
73314245
oct1433350
9680604
10407272
11258a98
12177834
131134b8
14a85cc
1580a17
hex636e8

407272 has 8 divisors (see below), whose sum is σ = 763650. Its totient is φ = 203632.

The previous prime is 407263. The next prime is 407273. The reversal of 407272 is 272704.

It can be written as a sum of positive squares in only one way, i.e., 376996 + 30276 = 614^2 + 174^2 .

It is a tau number, because it is divible by the number of its divisors (8).

407272 is a modest number, since divided by 7272 gives 40 as remainder.

It is not an unprimeable number, because it can be changed into a prime (407273) by changing a digit.

407272 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25447 + ... + 25462.

2407272 is an apocalyptic number.

It is an amenable number.

407272 is a deficient number, since it is larger than the sum of its proper divisors (356378).

407272 is a wasteful number, since it uses less digits than its factorization.

407272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50915 (or 50911 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 22.

The square root of 407272 is about 638.1786583708. The cubic root of 407272 is about 74.1244557744.

Adding to 407272 its reverse (272704), we get a palindrome (679976).

The spelling of 407272 in words is "four hundred seven thousand, two hundred seventy-two", and thus it is an iban number.

Divisors: 1 2 4 8 50909 101818 203636 407272