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212387700608 = 271987330469
BaseRepresentation
bin1100010111001101001…
…0110001111110000000
3202022012122221002002122
43011303102301332000
511434432222404413
6241323005303412
721226110445136
oct3056322617600
9668178832078
10212387700608
1182089357aa6
12351b4264b68
13170498a9c35
14a3cb3c1756
1557d0c79108
hex31734b1f80

212387700608 has 32 divisors (see below), whose sum is σ = 445385397000. Its totient is φ = 100604699136.

The previous prime is 212387700607. The next prime is 212387700667. The reversal of 212387700608 is 806007783212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212387700607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43662803 + ... + 43667666.

Almost surely, 2212387700608 is an apocalyptic number.

It is an amenable number.

212387700608 is an abundant number, since it is smaller than the sum of its proper divisors (232997696392).

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

212387700608 is an equidigital number, since it uses as much as digits as its factorization.

212387700608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87330502 (or 87330490 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 212387700608 in words is "two hundred twelve billion, three hundred eighty-seven million, seven hundred thousand, six hundred eight".

Divisors: 1 2 4 8 16 19 32 38 64 76 128 152 304 608 1216 2432 87330469 174660938 349321876 698643752 1397287504 1659278911 2794575008 3318557822 5589150016 6637115644 11178300032 13274231288 26548462576 53096925152 106193850304 212387700608