Search a number
-
+
2277961984 = 281921572
BaseRepresentation
bin1000011111000110…
…1111000100000000
312212202101110101101
42013301233010000
514131124240414
61014012344144
7110310233404
oct20761570400
95782343341
102277961984
11a69939611
12536a75054
132a3c2a1cc
14178773104
15d4ebba74
hex87c6f100

2277961984 has 81 divisors (see below), whose sum is σ = 4829699637. Its totient is φ = 1072161792.

The previous prime is 2277961969. The next prime is 2277962033. The reversal of 2277961984 is 4891697722.

The square root of 2277961984 is 47728.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 667705600 + 1610256384 = 25840^2 + 40128^2 .

It is a super-2 number, since 2×22779619842 = 10378221601098432512, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 14509234 + ... + 14509390.

Almost surely, 22277961984 is an apocalyptic number.

2277961984 is the 47728-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2277961984

2277961984 is an abundant number, since it is smaller than the sum of its proper divisors (2551737653).

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

2277961984 is an frugal number, since it uses more digits than its factorization.

2277961984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 178 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 55.

The cubic root of 2277961984 is about 1315.7765963162.

The spelling of 2277961984 in words is "two billion, two hundred seventy-seven million, nine hundred sixty-one thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 16 19 32 38 64 76 128 152 157 256 304 314 361 608 628 722 1216 1256 1444 2432 2512 2888 2983 4864 5024 5776 5966 10048 11552 11932 20096 23104 23864 24649 40192 46208 47728 49298 56677 92416 95456 98596 113354 190912 197192 226708 381824 394384 453416 468331 763648 788768 906832 936662 1577536 1813664 1873324 3155072 3627328 3746648 6310144 7254656 7493296 8898289 14509312 14986592 17796578 29973184 35593156 59946368 71186312 119892736 142372624 284745248 569490496 1138980992 2277961984