Search a number
-
+
22770451280 = 245168712
BaseRepresentation
bin10101001101001110…
…011000001101010000
32011202220121202221102
4111031032120031100
5333113213420110
614243253443532
71434162433223
oct251516301520
964686552842
1022770451280
119725365085
1244b59405a8
1321bb65a415
1411602175ba
158d40ba5a5
hex54d398350

22770451280 has 30 divisors (see below), whose sum is σ = 52944437418. Its totient is φ = 9107640640.

The previous prime is 22770451279. The next prime is 22770451303. The reversal of 22770451280 is 8215407722.

It can be written as a sum of positive squares in only one way, i.e., 18216361024 + 4554090256 = 134968^2 + 67484^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1341245 + ... + 1358115.

Almost surely, 222770451280 is an apocalyptic number.

22770451280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22770451280 is an abundant number, since it is smaller than the sum of its proper divisors (30173986138).

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

22770451280 is an frugal number, since it uses more digits than its factorization.

22770451280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33755 (or 16878 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 38.

The spelling of 22770451280 in words is "twenty-two billion, seven hundred seventy million, four hundred fifty-one thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 16871 33742 67484 84355 134968 168710 269936 337420 674840 1349680 284630641 569261282 1138522564 1423153205 2277045128 2846306410 4554090256 5692612820 11385225640 22770451280