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102424454400 = 283526779621
BaseRepresentation
bin101111101100011111…
…0010010010100000000
3100210101010200101110010
41133120332102110000
53134231130020100
6115015251304520
710254113332452
oct1373076222400
9323333611403
10102424454400
113a48aa30624
1217a258ab140
139873bab148
144d590482d2
1529e6ee1750
hex17d8f92500

102424454400 has 216 divisors, whose sum is σ = 343071451744. Its totient is φ = 26905190400.

The previous prime is 102424454387. The next prime is 102424454471. The reversal of 102424454400 is 4454424201.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 23 ways as a sum of consecutive naturals, for example, 1246590 + ... + 1326210.

Almost surely, 2102424454400 is an apocalyptic number.

102424454400 is a gapful number since it is divisible by the number (10) 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 102424454400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171535725872).

102424454400 is an abundant number, since it is smaller than the sum of its proper divisors (240646997344).

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

102424454400 is an equidigital number, since it uses as much as digits as its factorization.

102424454400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79717 (or 79698 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 30.

Adding to 102424454400 its reverse (4454424201), we get a palindrome (106878878601).

The spelling of 102424454400 in words is "one hundred two billion, four hundred twenty-four million, four hundred fifty-four thousand, four hundred".