Search a number
-
+
2750275280 = 245612112671
BaseRepresentation
bin1010001111101101…
…1101111011010000
321002200010110102102
42203323131323100
521113032302110
61132523535532
7125103645164
oct24373357320
97080113372
102750275280
111191505585
1264908a5a8
1334aa3a22c
141c139cca4
151116b65a5
hexa3edded0

2750275280 has 80 divisors (see below), whose sum is σ = 6532462848. Its totient is φ = 1076544000.

The previous prime is 2750275273. The next prime is 2750275343. The reversal of 2750275280 is 825720572.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1028345 + ... + 1031015.

Almost surely, 22750275280 is an apocalyptic number.

2750275280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2750275280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3266231424).

2750275280 is an abundant number, since it is smaller than the sum of its proper divisors (3782187568).

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

2750275280 is a wasteful number, since it uses less digits than its factorization.

2750275280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956 (or 2950 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 2750275280 is about 52443.0670346424. The cubic root of 2750275280 is about 1401.0664119732.

The spelling of 2750275280 in words is "two billion, seven hundred fifty million, two hundred seventy-five thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 61 80 122 211 244 305 422 488 610 844 976 1055 1220 1688 2110 2440 2671 3376 4220 4880 5342 8440 10684 12871 13355 16880 21368 25742 26710 42736 51484 53420 64355 102968 106840 128710 162931 205936 213680 257420 325862 514840 563581 651724 814655 1029680 1127162 1303448 1629310 2254324 2606896 2817905 3258620 4508648 5635810 6517240 9017296 11271620 13034480 22543240 34378441 45086480 68756882 137513764 171892205 275027528 343784410 550055056 687568820 1375137640 2750275280