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30202320400 = 2452731349997
BaseRepresentation
bin11100001000001100…
…101101011000010000
32212221211222211210021
4130020030231120100
5443323243223100
621512540313224
72116304326150
oct341014553020
985854884707
1030202320400
111189947137a
125a2a842814
132b04282605
141667272760
15bbb790a1a
hex70832d610

30202320400 has 240 divisors, whose sum is σ = 85933388800. Its totient is φ = 9982310400.

The previous prime is 30202320397. The next prime is 30202320443. The reversal of 30202320400 is 402320203.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30292702 + ... + 30293698.

Almost surely, 230202320400 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 30202320400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42966694400).

30202320400 is an abundant number, since it is smaller than the sum of its proper divisors (55731068400).

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

30202320400 is a wasteful number, since it uses less digits than its factorization.

30202320400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402 (or 1391 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 30202320400 its reverse (402320203), we get a palindrome (30604640603).

The spelling of 30202320400 in words is "thirty billion, two hundred two million, three hundred twenty thousand, four hundred".