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20523342060 = 223351323791609
BaseRepresentation
bin10011000111010010…
…010101100011101100
31221222022021210121000
4103013102111203230
5314012433421220
613232302240300
71324405346334
oct230722254354
957868253530
1020523342060
118781989721
123b89286090
131c20c433b0
14dc99d60c4
15801b95390
hex4c74958ec

20523342060 has 384 divisors, whose sum is σ = 72705024000. Its totient is φ = 4768118784.

The previous prime is 20523342031. The next prime is 20523342067. The reversal of 20523342060 is 6024332502.

20523342060 is a `hidden beast` number, since 2 + 0 + 5 + 233 + 420 + 6 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (20523342067) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 12754536 + ... + 12756144.

It is an arithmetic number, because the mean of its divisors is an integer number (189336000).

Almost surely, 220523342060 is an apocalyptic number.

20523342060 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 20523342060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36352512000).

20523342060 is an abundant number, since it is smaller than the sum of its proper divisors (52181681940).

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

20523342060 is a wasteful number, since it uses less digits than its factorization.

20523342060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742 (or 1734 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 20523342060 its reverse (6024332502), we get a palindrome (26547674562).

The spelling of 20523342060 in words is "twenty billion, five hundred twenty-three million, three hundred forty-two thousand, sixty".