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10055405 = 52011081
BaseRepresentation
bin100110010110…
…111011101101
3200220212102102
4212112323231
510033233110
6555304445
7151320023
oct46267355
920825372
1010055405
115748858
12344b125
132110b59
14149a713
15d395a5
hex996eed

10055405 has 4 divisors (see below), whose sum is σ = 12066492. Its totient is φ = 8044320.

The previous prime is 10055401. The next prime is 10055407. The reversal of 10055405 is 50455001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50455001 = 64777983.

It can be written as a sum of positive squares in 2 ways, for example, as 1841449 + 8213956 = 1357^2 + 2866^2 .

It is not a de Polignac number, because 10055405 - 22 = 10055401 is a prime.

It is a super-2 number, since 2×100554052 = 202222339428050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10055401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005536 + ... + 1005545.

It is an arithmetic number, because the mean of its divisors is an integer number (3016623).

Almost surely, 210055405 is an apocalyptic number.

It is an amenable number.

10055405 is a deficient number, since it is larger than the sum of its proper divisors (2011087).

10055405 is an equidigital number, since it uses as much as digits as its factorization.

10055405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011086.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 10055405 is about 3171.0258592449. The cubic root of 10055405 is about 215.8406246036.

The spelling of 10055405 in words is "ten million, fifty-five thousand, four hundred five".

Divisors: 1 5 2011081 10055405