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2438397980 = 225373326863
BaseRepresentation
bin1001000101010111…
…0000000000011100
320021221021110012022
42101111300000130
514443212213410
61041543155312
7114266020004
oct22125600034
96257243168
102438397980
111041459547
12580745b38
132cb241255
14191bb7004
15e410d455
hex9157001c

2438397980 has 24 divisors (see below), whose sum is σ = 5134379712. Its totient is φ = 972741312.

The previous prime is 2438397971. The next prime is 2438397989. The reversal of 2438397980 is 897938342.

It is an interprime number because it is at equal distance from previous prime (2438397971) and next prime (2438397989).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2438397989) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 155972 + ... + 170891.

It is an arithmetic number, because the mean of its divisors is an integer number (213932488).

Almost surely, 22438397980 is an apocalyptic number.

2438397980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2438397980 is an abundant number, since it is smaller than the sum of its proper divisors (2695981732).

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

2438397980 is a wasteful number, since it uses less digits than its factorization.

2438397980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327245 (or 327243 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 53.

The square root of 2438397980 is about 49380.1375048713. The cubic root of 2438397980 is about 1345.9683982786.

The spelling of 2438397980 in words is "two billion, four hundred thirty-eight million, three hundred ninety-seven thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 373 746 1492 1865 3730 7460 326863 653726 1307452 1634315 3268630 6537260 121919899 243839798 487679596 609599495 1219198990 2438397980