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4453143140 = 2252937207509
BaseRepresentation
bin1000010010110110…
…11001001001100100
3102111100101002222102
410021123121021210
533110001040030
62013514151232
7215232043415
oct41133311144
912440332872
104453143140
111985757396
12a43422518
1355c77bc54
143035cd80c
151b0e34c45
hex1096d9264

4453143140 has 48 divisors (see below), whose sum is σ = 9935578800. Its totient is φ = 1673344512.

The previous prime is 4453143131. The next prime is 4453143143. The reversal of 4453143140 is 413413544.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1073348644 + 3379794496 = 32762^2 + 58136^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (4453143143) 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, 82295 + ... + 125214.

It is an arithmetic number, because the mean of its divisors is an integer number (206991225).

Almost surely, 24453143140 is an apocalyptic number.

It is an amenable number.

4453143140 is an abundant number, since it is smaller than the sum of its proper divisors (5482435660).

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

4453143140 is a wasteful number, since it uses less digits than its factorization.

4453143140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207584 (or 207582 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 4453143140 is about 66731.8749923903. The cubic root of 4453143140 is about 1645.2133252538.

Adding to 4453143140 its reverse (413413544), we get a palindrome (4866556684).

The spelling of 4453143140 in words is "four billion, four hundred fifty-three million, one hundred forty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 29 37 58 74 116 145 148 185 290 370 580 740 1073 2146 4292 5365 10730 21460 207509 415018 830036 1037545 2075090 4150180 6017761 7677833 12035522 15355666 24071044 30088805 30711332 38389165 60177610 76778330 120355220 153556660 222657157 445314314 890628628 1113285785 2226571570 4453143140