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20302682400 = 25345271113313
BaseRepresentation
bin10010111010001000…
…100101100100100000
31221101221002010110000
4102322020211210200
5313034441314100
613154340540000
71316055644610
oct227210454440
957357063400
1020302682400
118679375870
123b273b1600
131bb7304650
14da8596a40
157dc609900
hex4ba225920

20302682400 has 1440 divisors, whose sum is σ = 99727867008. Its totient is φ = 3881779200.

The previous prime is 20302682377. The next prime is 20302682417. The reversal of 20302682400 is 428620302.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a Harshad number since it is a multiple of its sum of digits (27).

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 239 ways as a sum of consecutive naturals, for example, 64864644 + ... + 64864956.

Almost surely, 220302682400 is an apocalyptic number.

20302682400 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 20302682400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49863933504).

20302682400 is an abundant number, since it is smaller than the sum of its proper divisors (79425184608).

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

20302682400 is a wasteful number, since it uses less digits than its factorization.

20302682400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The spelling of 20302682400 in words is "twenty billion, three hundred two million, six hundred eighty-two thousand, four hundred".