Search a number
-
+
1219223080 = 23530480577
BaseRepresentation
bin100100010101011…
…1101111000101000
310010222011221122101
41020222331320220
54444110114310
6320552103144
742133140145
oct11052757050
93128157571
101219223080
11576246389
122a0394ab4
1316579509a
14b7cd53cc
157208643a
hex48abde28

1219223080 has 16 divisors (see below), whose sum is σ = 2743252020. Its totient is φ = 487689216.

The previous prime is 1219223063. The next prime is 1219223081. The reversal of 1219223080 is 803229121.

1219223080 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1191492324 + 27730756 = 34518^2 + 5266^2 .

It is not an unprimeable number, because it can be changed into a prime (1219223081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15240249 + ... + 15240328.

Almost surely, 21219223080 is an apocalyptic number.

1219223080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1219223080 is an abundant number, since it is smaller than the sum of its proper divisors (1524028940).

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

1219223080 is a wasteful number, since it uses less digits than its factorization.

1219223080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30480588 (or 30480584 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1219223080 is about 34917.3750445248. The cubic root of 1219223080 is about 1068.3028617332.

The spelling of 1219223080 in words is "one billion, two hundred nineteen million, two hundred twenty-three thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 30480577 60961154 121922308 152402885 243844616 304805770 609611540 1219223080