Base | Representation |
---|---|
bin | 1000010110010… |
… | …00000100000000 |
3 | 11212202122220000 |
4 | 10023020010000 |
5 | 120411303342 |
6 | 10540520000 |
7 | 1510130616 |
oct | 413100400 |
9 | 155678800 |
10 | 70025472 |
11 | 365891a0 |
12 | 1b550000 |
13 | 1167a2ba |
14 | 942b6b6 |
15 | 623344c |
hex | 42c8100 |
70025472 has 180 divisors, whose sum is σ = 228527376. Its totient is φ = 21150720.
The previous prime is 70025471. The next prime is 70025479. The reversal of 70025472 is 27452007.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (70025471) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 227943 + ... + 228249.
Almost surely, 270025472 is an apocalyptic number.
70025472 is a gapful number since it is divisible by the number (72) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 70025472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114263688).
70025472 is an abundant number, since it is smaller than the sum of its proper divisors (158501904).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70025472 is a wasteful number, since it uses less digits than its factorization.
70025472 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 346 (or 323 counting only the distinct ones).
The product of its (nonzero) digits is 3920, while the sum is 27.
The square root of 70025472 is about 8368.1223700422. The cubic root of 70025472 is about 412.1785131468.
Adding to 70025472 its reverse (27452007), we get a palindrome (97477479).
The spelling of 70025472 in words is "seventy million, twenty-five thousand, four hundred seventy-two".
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