[go: up one dir, main page]

Search a number
-
+
40105404 = 22321114039
BaseRepresentation
bin1001100011111…
…1010110111100
32210110120021100
42120333112330
540231333104
63551333100
7664614243
oct230772674
983416240
1040105404
1120702869
1211521190
138402811
14547d95a
1537c3139
hex263f5bc

40105404 has 18 divisors (see below), whose sum is σ = 101377640. Its totient is φ = 13368456.

The previous prime is 40105391. The next prime is 40105411. The reversal of 40105404 is 40450104.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 556984 + ... + 557055.

Almost surely, 240105404 is an apocalyptic number.

It is an amenable number.

40105404 is an abundant number, since it is smaller than the sum of its proper divisors (61272236).

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

40105404 is a wasteful number, since it uses less digits than its factorization.

40105404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114049 (or 1114044 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 40105404 is about 6332.8827559019. The cubic root of 40105404 is about 342.2953230365.

Adding to 40105404 its reverse (40450104), we get a palindrome (80555508).

The spelling of 40105404 in words is "forty million, one hundred five thousand, four hundred four".

Divisors: 1 2 3 4 6 9 12 18 36 1114039 2228078 3342117 4456156 6684234 10026351 13368468 20052702 40105404