Search a number
-
+
29278080000 = 2103254131723
BaseRepresentation
bin11011010001000111…
…000000110000000000
32210120102212120022100
4123101013000300000
5434430142030000
621241122510400
72054352400551
oct332107006000
983512776270
1029278080000
1111464792934
125811205400
1329b794c6c0
1415ba606328
15b65576a00
hex6d11c0c00

29278080000 has 1320 divisors, whose sum is σ = 125696739168. Its totient is φ = 6488064000.

The previous prime is 29278079947. The next prime is 29278080011. The reversal of 29278080000 is 8087292.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1272959989 + ... + 1272960011.

Almost surely, 229278080000 is an apocalyptic number.

29278080000 is a gapful number since it is divisible by the number (20) 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 29278080000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62848369584).

29278080000 is an abundant number, since it is smaller than the sum of its proper divisors (96418659168).

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

29278080000 is a wasteful number, since it uses less digits than its factorization.

29278080000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 29278080000 in words is "twenty-nine billion, two hundred seventy-eight million, eighty thousand".