Search a number
-
+
105394420 = 22531169991
BaseRepresentation
bin1100100100000…
…11000011110100
321100022120222001
412102003003310
5203440110140
614242545044
72416560235
oct622030364
9240276861
10105394420
115454642a
122b368184
1318ab1c81
14ddd708c
1593bce9a
hex64830f4

105394420 has 24 divisors (see below), whose sum is σ = 228469248. Its totient is φ = 40797600.

The previous prime is 105394411. The next prime is 105394447. The reversal of 105394420 is 24493501.

It is a super-2 number, since 2×1053944202 = 22215967534272800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84376 + ... + 85615.

It is an arithmetic number, because the mean of its divisors is an integer number (9519552).

Almost surely, 2105394420 is an apocalyptic number.

105394420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105394420 is an abundant number, since it is smaller than the sum of its proper divisors (123074828).

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

105394420 is a wasteful number, since it uses less digits than its factorization.

105394420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170031 (or 170029 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 105394420 is about 10266.1784515953. The cubic root of 105394420 is about 472.3593751145.

The spelling of 105394420 in words is "one hundred five million, three hundred ninety-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 169991 339982 679964 849955 1699910 3399820 5269721 10539442 21078884 26348605 52697210 105394420