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4387401 = 32487489
BaseRepresentation
bin10000101111001001001001
322020220101100
4100233021021
52110344101
6234012013
752202154
oct20571111
98226340
104387401
112527357
121577009
13ba7cc5
14822c9b
155b9e86
hex42f249

4387401 has 6 divisors (see below), whose sum is σ = 6337370. Its totient is φ = 2924928.

The previous prime is 4387391. The next prime is 4387429. The reversal of 4387401 is 1047834.

It can be written as a sum of positive squares in only one way, i.e., 2822400 + 1565001 = 1680^2 + 1251^2 .

It is not a de Polignac number, because 4387401 - 215 = 4354633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4387441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 243736 + ... + 243753.

Almost surely, 24387401 is an apocalyptic number.

It is an amenable number.

4387401 is a deficient number, since it is larger than the sum of its proper divisors (1949969).

4387401 is a wasteful number, since it uses less digits than its factorization.

4387401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487495 (or 487492 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 4387401 is about 2094.6123746412. The cubic root of 4387401 is about 163.7077011349.

The spelling of 4387401 in words is "four million, three hundred eighty-seven thousand, four hundred one".

Divisors: 1 3 9 487489 1462467 4387401