Base | Representation |
---|---|
bin | 1001101000110010… |
… | …1110110111111110 |
3 | 20200021221200121112 |
4 | 2122030232313332 |
5 | 20244234411430 |
6 | 1104413002022 |
7 | 121052245400 |
oct | 23214566776 |
9 | 6607850545 |
10 | 2587028990 |
11 | 1108346197 |
12 | 602483312 |
13 | 322c80cb0 |
14 | 1a7826b70 |
15 | 1021bc195 |
hex | 9a32edfe |
2587028990 has 96 divisors (see below), whose sum is σ = 5958417024. Its totient is φ = 801239040.
The previous prime is 2587028981. The next prime is 2587028993. The reversal of 2587028990 is 998207852.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2587028993) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 295070 + ... + 303710.
It is an arithmetic number, because the mean of its divisors is an integer number (62066844).
Almost surely, 22587028990 is an apocalyptic number.
2587028990 is an abundant number, since it is smaller than the sum of its proper divisors (3371388034).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2587028990 is a wasteful number, since it uses less digits than its factorization.
2587028990 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8722 (or 8715 counting only the distinct ones).
The product of its (nonzero) digits is 725760, while the sum is 50.
The square root of 2587028990 is about 50862.8448870096. The cubic root of 2587028990 is about 1372.7783831080.
The spelling of 2587028990 in words is "two billion, five hundred eighty-seven million, twenty-eight thousand, nine hundred ninety".
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