Base | Representation |
---|---|
bin | 1101100101010… |
… | …0101010100100 |
3 | 10222012101000000 |
4 | 3121110222210 |
5 | 104041014032 |
6 | 5353021300 |
7 | 1261143660 |
oct | 331245244 |
9 | 128171000 |
10 | 56969892 |
11 | 2a181361 |
12 | 170b4830 |
13 | ba589c5 |
14 | 77cd8a0 |
15 | 5004e7c |
hex | 3654aa4 |
56969892 has 84 divisors (see below), whose sum is σ = 170892736. Its totient is φ = 16271280.
The previous prime is 56969849. The next prime is 56969893. The reversal of 56969892 is 29896965.
It is a tau number, because it is divible by the number of its divisors (84).
It is a Harshad number since it is a multiple of its sum of digits (54).
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (56969893) by changing a digit.
It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 19017 + ... + 21807.
Almost surely, 256969892 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 56969892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85446368).
56969892 is an abundant number, since it is smaller than the sum of its proper divisors (113922844).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
56969892 is a wasteful number, since it uses less digits than its factorization.
56969892 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2820 (or 2803 counting only the distinct ones).
The product of its digits is 2099520, while the sum is 54.
The square root of 56969892 is about 7547.8402208844. The cubic root of 56969892 is about 384.7823405666.
The spelling of 56969892 in words is "fifty-six million, nine hundred sixty-nine thousand, eight hundred ninety-two".
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