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841212408040 = 23584131249971
BaseRepresentation
bin11000011110111000010…
…10101011000011101000
32222102022112112222122121
430033130022223003220
5102240300334024130
61442240405201024
7114530012330104
oct14173412530350
92872275488577
10841212408040
112a4835523954
12117048400174
1361431279034
142ca01972904
1516d36465d7a
hexc3dc2ab0e8

841212408040 has 32 divisors (see below), whose sum is σ = 1892757987360. Its totient is φ = 336479617600.

The previous prime is 841212408017. The next prime is 841212408053. The reversal of 841212408040 is 40804212148.

It is a junction number, because it is equal to n+sod(n) for n = 841212407987 and 841212408005.

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 7 ways as a sum of consecutive naturals, for example, 3240255 + ... + 3490225.

It is an arithmetic number, because the mean of its divisors is an integer number (59148687105).

Almost surely, 2841212408040 is an apocalyptic number.

It is an amenable number.

841212408040 is an abundant number, since it is smaller than the sum of its proper divisors (1051545579320).

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

841212408040 is a wasteful number, since it uses less digits than its factorization.

841212408040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334113 (or 334109 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 34.

The spelling of 841212408040 in words is "eight hundred forty-one billion, two hundred twelve million, four hundred eight thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 84131 168262 249971 336524 420655 499942 673048 841310 999884 1249855 1682620 1999768 2499710 3365240 4999420 9998840 21030310201 42060620402 84121240804 105151551005 168242481608 210303102010 420606204020 841212408040