Search a number
-
+
2115015565376 = 267193724592731
BaseRepresentation
bin11110110001110000110…
…000000110000001000000
321111012020001220221120202
4132301300300012001000
5234123022441043001
64255342535424332
7305543025452060
oct36616060060100
97435201827522
102115015565376
11745a7816a44a
122a1aa25250a8
131245a2bac92c
147451dc273a0
153a03a5a396b
hex1ec70c06040

2115015565376 has 224 divisors, whose sum is σ = 5189471155200. Its totient is φ = 834873661440.

The previous prime is 2115015565367. The next prime is 2115015565379. The reversal of 2115015565376 is 6735655105112.

It is a tau number, because it is divible by the number of its divisors (224).

It is a self number, because there is not a number n which added to its sum of digits gives 2115015565376.

It is not an unprimeable number, because it can be changed into a prime (2115015565379) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 774445931 + ... + 774448661.

Almost surely, 22115015565376 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 2115015565376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2594735577600).

2115015565376 is an abundant number, since it is smaller than the sum of its proper divisors (3074455589824).

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

2115015565376 is a wasteful number, since it uses less digits than its factorization.

2115015565376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5265 (or 5255 counting only the distinct ones).

The product of its (nonzero) digits is 945000, while the sum is 47.

The spelling of 2115015565376 in words is "two trillion, one hundred fifteen billion, fifteen million, five hundred sixty-five thousand, three hundred seventy-six".