| Base | Representation |
|---|---|
| bin | 1000011011101… |
| … | …11110110000000 |
| 3 | 11221010020112200 |
| 4 | 10031313312000 |
| 5 | 121102323342 |
| 6 | 11004153200 |
| 7 | 1516220010 |
| oct | 415676600 |
| 9 | 157106480 |
| 10 | 70745472 |
| 11 | 36a30136 |
| 12 | 1b838800 |
| 13 | 1186cc35 |
| 14 | 9577c40 |
| 15 | 632694c |
| hex | 4377d80 |
70745472 has 192 divisors, whose sum is σ = 241013760. Its totient is φ = 19491840.
The previous prime is 70745461. The next prime is 70745473. The reversal of 70745472 is 27454707.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (192).
It is a Harshad number since it is a multiple of its sum of digits (36).
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 (70745473) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 249843 + ... + 250125.
It is an arithmetic number, because the mean of its divisors is an integer number (1255280).
Almost surely, 270745472 is an apocalyptic number.
70745472 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 70745472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120506880).
70745472 is an abundant number, since it is smaller than the sum of its proper divisors (170268288).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70745472 is a wasteful number, since it uses less digits than its factorization.
70745472 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 341 (or 326 counting only the distinct ones).
The product of its (nonzero) digits is 54880, while the sum is 36.
The square root of 70745472 is about 8411.0327546622. The cubic root of 70745472 is about 413.5863683625.
It can be divided in two parts, 70745 and 472, that added together give a palindrome (71217).
The spelling of 70745472 in words is "seventy million, seven hundred forty-five thousand, four hundred seventy-two".
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