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30220691424 = 2537119834159
BaseRepresentation
bin11100001001010010…
…110010011111100000
32220000010120012002120
4130021102302133200
5443342444111144
621514434144240
72116616432040
oct341122623740
986003505076
1030220691424
11118a8879840
125a34a22080
132b08015441
141669895720
15bbd1bde19
hex7094b27e0

30220691424 has 192 divisors, whose sum is σ = 99028500480. Its totient is φ = 7839659520.

The previous prime is 30220691419. The next prime is 30220691443. The reversal of 30220691424 is 42419602203.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7264257 + ... + 7268415.

It is an arithmetic number, because the mean of its divisors is an integer number (515773440).

Almost surely, 230220691424 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 30220691424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49514250240).

30220691424 is an abundant number, since it is smaller than the sum of its proper divisors (68807809056).

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

30220691424 is a wasteful number, since it uses less digits than its factorization.

30220691424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5173 (or 5165 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 30220691424 in words is "thirty billion, two hundred twenty million, six hundred ninety-one thousand, four hundred twenty-four".