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4315031440 = 24553937893
BaseRepresentation
bin1000000010011001…
…00010011110010000
3102010201111022100021
410001030202132100
532314122001230
61552102033224
7211634106406
oct40114423620
912121438307
104315031440
1119147a4a95
12a05118814
13539c83255
142cd11b476
151a3c52c7a
hex101322790

4315031440 has 20 divisors (see below), whose sum is σ = 10032448284. Its totient is φ = 1726012544.

The previous prime is 4315031393. The next prime is 4315031471. The reversal of 4315031440 is 441305134.

It can be written as a sum of positive squares in 2 ways, for example, as 1068766864 + 3246264576 = 32692^2 + 56976^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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 3 ways as a sum of consecutive naturals, for example, 26968867 + ... + 26969026.

Almost surely, 24315031440 is an apocalyptic number.

4315031440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4315031440 is an abundant number, since it is smaller than the sum of its proper divisors (5717416844).

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

4315031440 is a wasteful number, since it uses less digits than its factorization.

4315031440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53937906 (or 53937900 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 4315031440 is about 65688.8989099376. The cubic root of 4315031440 is about 1628.0259440032.

Adding to 4315031440 its reverse (441305134), we get a palindrome (4756336574).

The spelling of 4315031440 in words is "four billion, three hundred fifteen million, thirty-one thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 53937893 107875786 215751572 269689465 431503144 539378930 863006288 1078757860 2157515720 4315031440