Base | Representation |
---|---|
bin | 1110101001111… |
… | …1001011100000 |
3 | 11021122222011202 |
4 | 3222133023200 |
5 | 111214010113 |
6 | 10033300332 |
7 | 1344324050 |
oct | 352371340 |
9 | 137588152 |
10 | 61469408 |
11 | 31774970 |
12 | 187046a8 |
13 | c972a40 |
14 | 8241560 |
15 | 55e3258 |
hex | 3a9f2e0 |
61469408 has 192 divisors, whose sum is σ = 172730880. Its totient is φ = 20736000.
The previous prime is 61469407. The next prime is 61469413. The reversal of 61469408 is 80496416.
It is a Harshad number since it is a multiple of its sum of digits (38).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (61469407) 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, 608558 + ... + 608658.
It is an arithmetic number, because the mean of its divisors is an integer number (899640).
Almost surely, 261469408 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 61469408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86365440).
61469408 is an abundant number, since it is smaller than the sum of its proper divisors (111261472).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
61469408 is a wasteful number, since it uses less digits than its factorization.
61469408 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 161 (or 153 counting only the distinct ones).
The product of its (nonzero) digits is 41472, while the sum is 38.
The square root of 61469408 is about 7840.2428533815. The cubic root of 61469408 is about 394.6568787646.
The spelling of 61469408 in words is "sixty-one million, four hundred sixty-nine thousand, four hundred eight".
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