Search a number
-
+
1219068896 = 25376116879
BaseRepresentation
bin100100010101001…
…1000001111100000
310010221220010010212
41020222120033200
54444040201041
6320544513252
742131625503
oct11052301740
93127803125
101219068896
11576150561
122a031b828
1316573cb56
14b7c9513a
15720558eb
hex48a983e0

1219068896 has 48 divisors (see below), whose sum is σ = 2505464640. Its totient is φ = 583303680.

The previous prime is 1219068883. The next prime is 1219068901. The reversal of 1219068896 is 6988609121.

It is a happy number.

It is a super-2 number, since 2×12190688962 = 2972257946389317632, which contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63785 + ... + 80663.

It is an arithmetic number, because the mean of its divisors is an integer number (52197180).

Almost surely, 21219068896 is an apocalyptic number.

1219068896 is a gapful number since it is divisible by the number (16) 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 1219068896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1252732320).

1219068896 is an abundant number, since it is smaller than the sum of its proper divisors (1286395744).

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

1219068896 is a wasteful number, since it uses less digits than its factorization.

1219068896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16987 (or 16979 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 50.

The square root of 1219068896 is about 34915.1671340694. The cubic root of 1219068896 is about 1068.2578270016.

The spelling of 1219068896 in words is "one billion, two hundred nineteen million, sixty-eight thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 16 32 37 61 74 122 148 244 296 488 592 976 1184 1952 2257 4514 9028 16879 18056 33758 36112 67516 72224 135032 270064 540128 624523 1029619 1249046 2059238 2498092 4118476 4996184 8236952 9992368 16473904 19984736 32947808 38095903 76191806 152383612 304767224 609534448 1219068896