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30023223120 = 243251111333547
BaseRepresentation
bin11011111101100001…
…100000011101010000
32212111100222202111200
4123331201200131100
5442441421114440
621443101511200
72112001120512
oct337541403520
985440882450
1030023223120
11118073659a0
12599a872500
132aa61365a7
14164b571bb2
15baabb4c30
hex6fd860750

30023223120 has 240 divisors, whose sum is σ = 110970879552. Its totient is φ = 7213731840.

The previous prime is 30023223091. The next prime is 30023223137. The reversal of 30023223120 is 2132232003.

It is a happy number.

30023223120 is a `hidden beast` number, since 30 + 0 + 2 + 322 + 312 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30023223093 and 30023223102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 878187 + ... + 911733.

Almost surely, 230023223120 is an apocalyptic number.

30023223120 is a gapful number since it is divisible by the number (30) 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 30023223120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55485439776).

30023223120 is an abundant number, since it is smaller than the sum of its proper divisors (80947656432).

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

30023223120 is a wasteful number, since it uses less digits than its factorization.

30023223120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33690 (or 33681 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30023223120 its reverse (2132232003), we get a palindrome (32155455123).

The spelling of 30023223120 in words is "thirty billion, twenty-three million, two hundred twenty-three thousand, one hundred twenty".