Search a number
-
+
30011087808 = 26321317323167
BaseRepresentation
bin11011111100110011…
…001101101111000000
32212110112011012222200
4123330303031233000
5442430314302213
621441545433200
72111463015552
oct337463155700
985415135880
1030011087808
1111800527509
12599679b800
132aa3777b30
141649ad34d2
15ba9ab9273
hex6fcccdbc0

30011087808 has 168 divisors, whose sum is σ = 93177896448. Its totient is φ = 9180407808.

The previous prime is 30011087779. The next prime is 30011087831. The reversal of 30011087808 is 80878011003.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1283841 + ... + 1307007.

It is an arithmetic number, because the mean of its divisors is an integer number (554630336).

Almost surely, 230011087808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30011087808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46588948224).

30011087808 is an abundant number, since it is smaller than the sum of its proper divisors (63166808640).

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

30011087808 is a wasteful number, since it uses less digits than its factorization.

30011087808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23371 (or 23358 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The spelling of 30011087808 in words is "thirty billion, eleven million, eighty-seven thousand, eight hundred eight".