Base | Representation |
---|---|
bin | 111010000111010… |
… | …000011100011010 |
3 | 2111221121011100100 |
4 | 322013100130122 |
5 | 3444043342030 |
6 | 240425120230 |
7 | 33106125612 |
oct | 7207203432 |
9 | 2457534310 |
10 | 974980890 |
11 | 460395634 |
12 | 232629076 |
13 | 126cba390 |
14 | 936b7a42 |
15 | 5a8dd360 |
hex | 3a1d071a |
974980890 has 96 divisors (see below), whose sum is σ = 2742719616. Its totient is φ = 238872960.
The previous prime is 974980883. The next prime is 974980891. The reversal of 974980890 is 98089479.
It is not an unprimeable number, because it can be changed into a prime (974980891) 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, 263755 + ... + 267425.
It is an arithmetic number, because the mean of its divisors is an integer number (28569996).
Almost surely, 2974980890 is an apocalyptic number.
974980890 is a gapful number since it is divisible by the number (90) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 974980890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1371359808).
974980890 is an abundant number, since it is smaller than the sum of its proper divisors (1767738726).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
974980890 is a wasteful number, since it uses less digits than its factorization.
974980890 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3924 (or 3921 counting only the distinct ones).
The product of its (nonzero) digits is 1306368, while the sum is 54.
The square root of 974980890 is about 31224.6839855906. The cubic root of 974980890 is about 991.5897628693.
The spelling of 974980890 in words is "nine hundred seventy-four million, nine hundred eighty thousand, eight hundred ninety".
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