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212190790662144 = 21133723293797229
BaseRepresentation
bin110000001111110010000100…
…101100111011100000000000
31000211022020112001000000022000
4300033302010230323200000
5210303013214402142034
62031143034205344000
762460164413234530
oct6017620454734000
91024266461000260
10212190790662144
1161679677587528
121b96bbb6568000
139152676043c98
143a581365794c0
15197e881ba6599
hexc0fc84b3b800

212190790662144 has 3072 divisors, whose sum is σ = 808116341760000. Its totient is φ = 53680061546496.

The previous prime is 212190790662119. The next prime is 212190790662197. The reversal of 212190790662144 is 441266097091212.

212190790662144 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 9 + 0 + 7 + 9 + 0 + 6 + 621 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (3072).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 926597339022 + ... + 926597339250.

It is an arithmetic number, because the mean of its divisors is an integer number (263058705000).

Almost surely, 2212190790662144 is an apocalyptic number.

212190790662144 is a gapful number since it is divisible by the number (24) 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 212190790662144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404058170880000).

212190790662144 is an abundant number, since it is smaller than the sum of its proper divisors (595925551097856).

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

212190790662144 is a wasteful number, since it uses less digits than its factorization.

212190790662144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 212190790662144 in words is "two hundred twelve trillion, one hundred ninety billion, seven hundred ninety million, six hundred sixty-two thousand, one hundred forty-four".