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5438402 = 2172972
BaseRepresentation
bin10100101111101111000010
3101020022002022
4110233233002
52343012102
6312321442
764140254
oct24575702
911208068
105438402
113084a52
1219a3282
1311854b8
14a17cd4
157265a2
hex52fbc2

5438402 has 18 divisors (see below), whose sum is σ = 8755947. Its totient is φ = 2532864.

The previous prime is 5438401. The next prime is 5438429. The reversal of 5438402 is 2048345.

It can be written as a sum of positive squares in 5 ways, for example, as 3996001 + 1442401 = 1999^2 + 1201^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=1649.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5438401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 56018 + ... + 56114.

Almost surely, 25438402 is an apocalyptic number.

5438402 is a deficient number, since it is larger than the sum of its proper divisors (3317545).

5438402 is an equidigital number, since it uses as much as digits as its factorization.

5438402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 5438402 is about 2332.0381643532. The cubic root of 5438402 is about 175.8559642836.

The spelling of 5438402 in words is "five million, four hundred thirty-eight thousand, four hundred two".

Divisors: 1 2 17 34 97 194 289 578 1649 3298 9409 18818 28033 56066 159953 319906 2719201 5438402