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2746990780 = 2252923320327
BaseRepresentation
bin1010001110111011…
…1100000010111100
321002102221120221021
42203232330002330
521111212201110
61132325313524
7125034015322
oct24356740274
97072846837
102746990780
11118a671916
12647b658a4
1334a15a241
141c0b85d12
151112682da
hexa3bbc0bc

2746990780 has 48 divisors (see below), whose sum is σ = 5993507520. Its totient is φ = 1056301568.

The previous prime is 2746990769. The next prime is 2746990861. The reversal of 2746990780 is 870996472.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124977 + ... + 145303.

It is an arithmetic number, because the mean of its divisors is an integer number (124864740).

Almost surely, 22746990780 is an apocalyptic number.

2746990780 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 2746990780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2996753760).

2746990780 is an abundant number, since it is smaller than the sum of its proper divisors (3246516740).

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

2746990780 is a wasteful number, since it uses less digits than its factorization.

2746990780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20598 (or 20596 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 2746990780 is about 52411.7427682003. The cubic root of 2746990780 is about 1400.5084513729.

The spelling of 2746990780 in words is "two billion, seven hundred forty-six million, nine hundred ninety thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 29 58 116 145 233 290 466 580 932 1165 2330 4660 6757 13514 20327 27028 33785 40654 67570 81308 101635 135140 203270 406540 589483 1178966 2357932 2947415 4736191 5894830 9472382 11789660 18944764 23680955 47361910 94723820 137349539 274699078 549398156 686747695 1373495390 2746990780