Search a number
-
+
29287219248 = 243772192931
BaseRepresentation
bin11011010001101001…
…111000000000110000
32210121002001220000000
4123101221320000300
5434440012003443
621242050430000
72054523153600
oct332151700060
983532056000
1029287219248
1111469965331
125814292300
1329b97cc541
1415bb904c00
15b6627e8d3
hex6d1a78030

29287219248 has 960 divisors, whose sum is σ = 111278592000. Its totient is φ = 7407106560.

The previous prime is 29287219207. The next prime is 29287219259. The reversal of 29287219248 is 84291278292.

It is a super-2 number, since 2×292872192482 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 29287219194 and 29287219203.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 944748993 + ... + 944749023.

It is an arithmetic number, because the mean of its divisors is an integer number (115915200).

Almost surely, 229287219248 is an apocalyptic number.

29287219248 is a gapful number since it is divisible by the number (28) 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 29287219248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55639296000).

29287219248 is an abundant number, since it is smaller than the sum of its proper divisors (81991372752).

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

29287219248 is a wasteful number, since it uses less digits than its factorization.

29287219248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 91 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The spelling of 29287219248 in words is "twenty-nine billion, two hundred eighty-seven million, two hundred nineteen thousand, two hundred forty-eight".