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124001313212 = 22723571337213
BaseRepresentation
bin111001101111100001…
…1011110000110111100
3102212001212100101100002
41303133003132012330
54012423314010322
6132544310253432
711646603525410
oct1633703360674
9385055311302
10124001313212
1148652565a47
1220047957278
13b90217871a
14600491cd40
15335b3d9c92
hex1cdf0de1bc

124001313212 has 48 divisors (see below), whose sum is σ = 259239332352. Its totient is φ = 50743661760.

The previous prime is 124001313209. The next prime is 124001313217. The reversal of 124001313212 is 212313100421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124001313217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199118 + ... + 536330.

It is an arithmetic number, because the mean of its divisors is an integer number (5400819424).

Almost surely, 2124001313212 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 124001313212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129619666176).

124001313212 is an abundant number, since it is smaller than the sum of its proper divisors (135238019140).

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

124001313212 is a wasteful number, since it uses less digits than its factorization.

124001313212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337818 (or 337816 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 124001313212 its reverse (212313100421), we get a palindrome (336314413633).

The spelling of 124001313212 in words is "one hundred twenty-four billion, one million, three hundred thirteen thousand, two hundred twelve".

Divisors: 1 2 4 7 14 23 28 46 92 161 322 571 644 1142 2284 3997 7994 13133 15988 26266 52532 91931 183862 337213 367724 674426 1348852 2360491 4720982 7755899 9441964 15511798 31023596 54291293 108582586 192548623 217165172 385097246 770194492 1347840361 2695680722 4428618329 5391361444 8857236658 17714473316 31000328303 62000656606 124001313212