Search a number
-
+
29558430720 = 21032572131953
BaseRepresentation
bin11011100001110100…
…011101110000000000
32211021222101212012100
4123201310131300000
5441013424240340
621325015430400
72064325341600
oct334164356000
984258355170
1029558430720
1111598a66545
12588b085400
132a30a5a8c0
141605942c00
15b7eea3830
hex6e1d1dc00

29558430720 has 1584 divisors, whose sum is σ = 137606545440. Its totient is φ = 5796790272.

The previous prime is 29558430691. The next prime is 29558430721. The reversal of 29558430720 is 2703485592.

29558430720 is a `hidden beast` number, since 29 + 558 + 4 + 3 + 0 + 72 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29558430721) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 557706214 + ... + 557706266.

Almost surely, 229558430720 is an apocalyptic number.

29558430720 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 29558430720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68803272720).

29558430720 is an abundant number, since it is smaller than the sum of its proper divisors (108048114720).

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

29558430720 is a wasteful number, since it uses less digits than its factorization.

29558430720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 29558430720 in words is "twenty-nine billion, five hundred fifty-eight million, four hundred thirty thousand, seven hundred twenty".