Search a number
-
+
104401540 = 2255220077
BaseRepresentation
bin1100011100100…
…00101010000100
321021110010222201
412032100222010
5203211322130
614205404244
72405253445
oct616205204
9237403881
10104401540
1153a28471
122ab69684
1318825079
14dc192cc
159273bca
hex6390a84

104401540 has 12 divisors (see below), whose sum is σ = 219243276. Its totient is φ = 41760608.

The previous prime is 104401519. The next prime is 104401541. The reversal of 104401540 is 45104401.

It can be written as a sum of positive squares in 2 ways, for example, as 66357316 + 38044224 = 8146^2 + 6168^2 .

It is not an unprimeable number, because it can be changed into a prime (104401541) 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, 2610019 + ... + 2610058.

It is an arithmetic number, because the mean of its divisors is an integer number (18270273).

Almost surely, 2104401540 is an apocalyptic number.

104401540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104401540 is an abundant number, since it is smaller than the sum of its proper divisors (114841736).

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

104401540 is a wasteful number, since it uses less digits than its factorization.

104401540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5220086 (or 5220084 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 104401540 is about 10217.7071792061. The cubic root of 104401540 is about 470.8713878101.

Adding to 104401540 its reverse (45104401), we get a palindrome (149505941).

The spelling of 104401540 in words is "one hundred four million, four hundred one thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 5220077 10440154 20880308 26100385 52200770 104401540