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20359998 = 23541893
BaseRepresentation
bin100110110101…
…0101100111110
31102022101200000
41031222230332
520203004443
62004215130
7335025411
oct115525476
942271600
1020359998
111054684a
12699a4a6
1342ab249
1429bdb78
151bc28d3
hex136ab3e

20359998 has 24 divisors (see below), whose sum is σ = 45748248. Its totient is φ = 6786504.

The previous prime is 20359993. The next prime is 20360017. The reversal of 20359998 is 89995302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20359993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20461 + ... + 21432.

It is an arithmetic number, because the mean of its divisors is an integer number (1906177).

Almost surely, 220359998 is an apocalyptic number.

20359998 is an abundant number, since it is smaller than the sum of its proper divisors (25388250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20359998 is an equidigital number, since it uses as much as digits as its factorization.

20359998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41910 (or 41898 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 20359998 is about 4512.2054474503. The cubic root of 20359998 is about 273.0607279466.

The spelling of 20359998 in words is "twenty million, three hundred fifty-nine thousand, nine hundred ninety-eight".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 486 41893 83786 125679 251358 377037 754074 1131111 2262222 3393333 6786666 10179999 20359998