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231247446231072 = 253193141824312101
BaseRepresentation
bin110100100101000101111101…
…111000110100100000100000
31010022210001002010111012021110
4310211011331320310200200
5220302224232213343242
62135453335450423320
766465035202021255
oct6445057570644040
91108701063435243
10231247446231072
1167756544875107
1221b29379a31b40
139c0570494b66b
1441166169bd42c
151bb04240eb39c
hexd2517de34820

231247446231072 has 384 divisors, whose sum is σ = 675810502778880. Its totient is φ = 68932131840000.

The previous prime is 231247446231047. The next prime is 231247446231083. The reversal of 231247446231072 is 270132644742132.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19109773822 + ... + 19109785922.

It is an arithmetic number, because the mean of its divisors is an integer number (1759923184320).

Almost surely, 2231247446231072 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 231247446231072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337905251389440).

231247446231072 is an abundant number, since it is smaller than the sum of its proper divisors (444563056547808).

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

231247446231072 is a wasteful number, since it uses less digits than its factorization.

231247446231072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20448 (or 20440 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 48.

The spelling of 231247446231072 in words is "two hundred thirty-one trillion, two hundred forty-seven billion, four hundred forty-six million, two hundred thirty-one thousand, seventy-two".