Base | Representation |
---|---|
bin | 1011000101001100… |
… | …1001110001010110 |
3 | 21200022012201121120 |
4 | 2301103021301112 |
5 | 22042443303430 |
6 | 1211055424410 |
7 | 133466403123 |
oct | 26123116126 |
9 | 7608181546 |
10 | 2974587990 |
11 | 1297093a90 |
12 | 6b0225106 |
13 | 38535794a |
14 | 2030ad74a |
15 | 126224610 |
hex | b14c9c56 |
2974587990 has 128 divisors (see below), whose sum is σ = 8049093120. Its totient is φ = 697190400.
The previous prime is 2974587949. The next prime is 2974587991. The reversal of 2974587990 is 997854792.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2974587991) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2184910 + ... + 2186270.
It is an arithmetic number, because the mean of its divisors is an integer number (62883540).
Almost surely, 22974587990 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2974587990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4024546560).
2974587990 is an abundant number, since it is smaller than the sum of its proper divisors (5074505130).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2974587990 is a wasteful number, since it uses less digits than its factorization.
2974587990 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1598.
The product of its (nonzero) digits is 11430720, while the sum is 60.
The square root of 2974587990 is about 54539.7835529258. The cubic root of 2974587990 is about 1438.1657442059.
The spelling of 2974587990 in words is "two billion, nine hundred seventy-four million, five hundred eighty-seven thousand, nine hundred ninety".
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