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229978828800 = 2123452717233
BaseRepresentation
bin1101011000101111001…
…1100111000000000000
3210222121121201222110000
43112023303213000000
512231444040010200
6253352324240000
722421042535150
oct3261363470000
9728547658400
10229978828800
1189596064a76
12386a3540000
13188c11b0a26
14b1b97b8760
155eb02ba300
hex358bce7000

229978828800 has 1560 divisors, whose sum is σ = 1035290763936. Its totient is φ = 49262100480.

The previous prime is 229978828787. The next prime is 229978828801. The reversal of 229978828800 is 8828879922.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229978828801) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 987033484 + ... + 987033716.

Almost surely, 2229978828800 is an apocalyptic number.

229978828800 is a gapful number since it is divisible by the number (20) 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 229978828800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517645381968).

229978828800 is an abundant number, since it is smaller than the sum of its proper divisors (805311935136).

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

229978828800 is a wasteful number, since it uses less digits than its factorization.

229978828800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 63.

The spelling of 229978828800 in words is "two hundred twenty-nine billion, nine hundred seventy-eight million, eight hundred twenty-eight thousand, eight hundred".