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841364687940 = 2235783912831861
BaseRepresentation
bin11000011111001010011…
…11100100110001000100
32222102201011002121101220
430033211033210301010
5102241103330003230
61442303445120340
7114533541563610
oct14174517446104
92872634077356
10841364687940
112a4903483007
1211708b3b90b0
136145699589a
142ca17c92340
1516d449e5d10
hexc3e53e4c44

841364687940 has 192 divisors, whose sum is σ = 2699126599680. Its totient is φ = 191829864960.

The previous prime is 841364687923. The next prime is 841364687941. The reversal of 841364687940 is 49786463148.

It is a super-2 number, since 2×8413646879402 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (841364687941) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 452102610 + ... + 452104470.

It is an arithmetic number, because the mean of its divisors is an integer number (14057951040).

Almost surely, 2841364687940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 841364687940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1349563299840).

841364687940 is an abundant number, since it is smaller than the sum of its proper divisors (1857761911740).

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

841364687940 is a wasteful number, since it uses less digits than its factorization.

841364687940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002 (or 4000 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 60.

The spelling of 841364687940 in words is "eight hundred forty-one billion, three hundred sixty-four million, six hundred eighty-seven thousand, nine hundred forty".