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101042121460 = 22571096621371
BaseRepresentation
bin101111000011010010…
…1000110101011110100
3100122210210120121010211
41132012211012223310
53123413240341320
6114230151155204
710204626601330
oct1360645065364
9318723517124
10101042121460
1139940709405
12176ba975b04
1396b36a6c67
144c676147c0
15296598b55a
hex1786946af4

101042121460 has 48 divisors (see below), whose sum is σ = 244725909120. Its totient is φ = 34325182080.

The previous prime is 101042121403. The next prime is 101042121461. The reversal of 101042121460 is 64121240101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101042121461) 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 15 ways as a sum of consecutive naturals, for example, 3295426 + ... + 3325945.

It is an arithmetic number, because the mean of its divisors is an integer number (5098456440).

Almost surely, 2101042121460 is an apocalyptic number.

101042121460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101042121460 is an abundant number, since it is smaller than the sum of its proper divisors (143683787660).

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

101042121460 is a wasteful number, since it uses less digits than its factorization.

101042121460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6621496 (or 6621494 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 101042121460 its reverse (64121240101), we get a palindrome (165163361561).

The spelling of 101042121460 in words is "one hundred one billion, forty-two million, one hundred twenty-one thousand, four hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 109 140 218 436 545 763 1090 1526 2180 3052 3815 7630 15260 6621371 13242742 26485484 33106855 46349597 66213710 92699194 132427420 185398388 231747985 463495970 721729439 926991940 1443458878 2886917756 3608647195 5052106073 7217294390 10104212146 14434588780 20208424292 25260530365 50521060730 101042121460