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101212101204 = 22317496137751
BaseRepresentation
bin101111001000010110…
…1100001101001010100
3100200020122102110111220
41132100231201221110
53124240244214304
6114255102330340
710212062444154
oct1362055415124
9320218373456
10101212101204
1139a18657735
12177478899b0
13970c97cca6
144c82020764
152975865ad9
hex1790b61a54

101212101204 has 24 divisors (see below), whose sum is σ = 250053427008. Its totient is φ = 31752816000.

The previous prime is 101212101173. The next prime is 101212101227. The reversal of 101212101204 is 402101212101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248068672 + ... + 248069079.

It is an arithmetic number, because the mean of its divisors is an integer number (10418892792).

Almost surely, 2101212101204 is an apocalyptic number.

It is an amenable number.

101212101204 is an abundant number, since it is smaller than the sum of its proper divisors (148841325804).

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

101212101204 is a wasteful number, since it uses less digits than its factorization.

101212101204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496137775 (or 496137773 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 101212101204 its reverse (402101212101), we get a palindrome (503313313305).

The spelling of 101212101204 in words is "one hundred one billion, two hundred twelve million, one hundred one thousand, two hundred four".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 496137751 992275502 1488413253 1984551004 2976826506 5953653012 8434341767 16868683534 25303025301 33737367068 50606050602 101212101204