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10055818 = 25027909
BaseRepresentation
bin100110010111…
…000010001010
3200220212222201
4212113002022
510033241233
6555310414
7151321153
oct46270212
920825881
1010055818
1157490a3
12344b40a
1321110b6
14149a92a
15d3977d
hex99708a

10055818 has 4 divisors (see below), whose sum is σ = 15083730. Its totient is φ = 5027908.

The previous prime is 10055777. The next prime is 10055819. The reversal of 10055818 is 81855001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81855001 = 686311927.

It can be written as a sum of positive squares in only one way, i.e., 6265009 + 3790809 = 2503^2 + 1947^2 .

It is a super-2 number, since 2×100558182 = 202238951298248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10055819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2513953 + ... + 2513956.

Almost surely, 210055818 is an apocalyptic number.

10055818 is a deficient number, since it is larger than the sum of its proper divisors (5027912).

10055818 is an equidigital number, since it uses as much as digits as its factorization.

10055818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5027911.

The product of its (nonzero) digits is 1600, while the sum is 28.

The square root of 10055818 is about 3171.0909794580. The cubic root of 10055818 is about 215.8435795967.

It can be divided in two parts, 100558 and 18, that added together give a triangular number (100576 = T448).

The spelling of 10055818 in words is "ten million, fifty-five thousand, eight hundred eighteen".

Divisors: 1 2 5027909 10055818