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1489248040 = 23575318743
BaseRepresentation
bin101100011000100…
…0001111100101000
310211210021122020211
41120301001330220
511022221414130
6403435430504
751622254010
oct13061017450
93753248224
101489248040
116a4707105
123568b5434
131a96c9377
14101b04c40
158ab23a2a
hex58c41f28

1489248040 has 32 divisors (see below), whose sum is σ = 3829495680. Its totient is φ = 510599232.

The previous prime is 1489248031. The next prime is 1489248041. The reversal of 1489248040 is 408429841.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1489247984 and 1489248002.

It is not an unprimeable number, because it can be changed into a prime (1489248041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2659092 + ... + 2659651.

It is an arithmetic number, because the mean of its divisors is an integer number (119671740).

Almost surely, 21489248040 is an apocalyptic number.

1489248040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1489248040 is an abundant number, since it is smaller than the sum of its proper divisors (2340247640).

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

1489248040 is a wasteful number, since it uses less digits than its factorization.

1489248040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5318761 (or 5318757 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 1489248040 is about 38590.7766182543. The cubic root of 1489248040 is about 1141.9725876566.

The spelling of 1489248040 in words is "one billion, four hundred eighty-nine million, two hundred forty-eight thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 5318743 10637486 21274972 26593715 37231201 42549944 53187430 74462402 106374860 148924804 186156005 212749720 297849608 372312010 744624020 1489248040