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4455240140 = 2251333151769
BaseRepresentation
bin1000010011000110…
…11001000111001100
3102111111022122112002
410021203121013030
533111020141030
62014031131432
7215255626211
oct41143310714
912444278462
104455240140
11198695994a
12a44073b78
13560034590
143039b7b08
151b11eb245
hex1098d91cc

4455240140 has 48 divisors (see below), whose sum is σ = 10106332320. Its totient is φ = 1640010240.

The previous prime is 4455240079. The next prime is 4455240143. The reversal of 4455240140 is 410425544.

It is not an unprimeable number, because it can be changed into a prime (4455240143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60176 + ... + 111944.

It is an arithmetic number, because the mean of its divisors is an integer number (210548590).

Almost surely, 24455240140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4455240140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5053166160).

4455240140 is an abundant number, since it is smaller than the sum of its proper divisors (5651092180).

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

4455240140 is a wasteful number, since it uses less digits than its factorization.

4455240140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52122 (or 52120 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 4455240140 is about 66747.5852746749. The cubic root of 4455240140 is about 1645.4715302142.

Adding to 4455240140 its reverse (410425544), we get a palindrome (4865665684).

The spelling of 4455240140 in words is "four billion, four hundred fifty-five million, two hundred forty thousand, one hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 331 662 1324 1655 3310 4303 6620 8606 17212 21515 43030 51769 86060 103538 207076 258845 517690 672997 1035380 1345994 2691988 3364985 6729970 13459940 17135539 34271078 68542156 85677695 171355390 222762007 342710780 445524014 891048028 1113810035 2227620070 4455240140