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70021210012 = 22132543529517
BaseRepresentation
bin100000100110110010…
…1101101111110011100
320200201220021000112121
41001031211231332130
52121400412210022
652100045312324
75026122315265
oct1011545557634
9220656230477
1070021210012
1127772169506
12116a1b656a4
1367ab962760
14356377796c
151c4c4002c7
hex104d96df9c

70021210012 has 24 divisors (see below), whose sum is σ = 132015191616. Its totient is φ = 32304712128.

The previous prime is 70021210009. The next prime is 70021210033. The reversal of 70021210012 is 21001212007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132523 + ... + 396994.

It is an arithmetic number, because the mean of its divisors is an integer number (5500632984).

Almost surely, 270021210012 is an apocalyptic number.

It is an amenable number.

70021210012 is a deficient number, since it is larger than the sum of its proper divisors (61993981604).

70021210012 is a wasteful number, since it uses less digits than its factorization.

70021210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532077 (or 532075 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 16.

Adding to 70021210012 its reverse (21001212007), we get a palindrome (91022422019).

The spelling of 70021210012 in words is "seventy billion, twenty-one million, two hundred ten thousand, twelve".

Divisors: 1 2 4 13 26 52 2543 5086 10172 33059 66118 132236 529517 1059034 2118068 6883721 13767442 27534884 1346561731 2693123462 5386246924 17505302503 35010605006 70021210012