Base | Representation |
---|---|
bin | 1000010111100… |
… | …00111101111011 |
3 | 11220002011201110 |
4 | 10023300331323 |
5 | 120432134034 |
6 | 10544251403 |
7 | 1511426241 |
oct | 413607573 |
9 | 156064643 |
10 | 70193019 |
11 | 36693066 |
12 | 1b610b63 |
13 | 11708640 |
14 | 9472791 |
15 | 6267de9 |
hex | 42f0f7b |
70193019 has 16 divisors (see below), whose sum is σ = 102298112. Its totient is φ = 42549408.
The previous prime is 70193003. The next prime is 70193047. The reversal of 70193019 is 91039107.
It is not a de Polignac number, because 70193019 - 24 = 70193003 is a prime.
It is a super-2 number, since 2×701930192 = 9854119832668722, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (70193059) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10819 + ... + 16044.
It is an arithmetic number, because the mean of its divisors is an integer number (6393632).
Almost surely, 270193019 is an apocalyptic number.
70193019 is a deficient number, since it is larger than the sum of its proper divisors (32105093).
70193019 is a wasteful number, since it uses less digits than its factorization.
70193019 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26946.
The product of its (nonzero) digits is 1701, while the sum is 30.
The square root of 70193019 is about 8378.1274160757. The cubic root of 70193019 is about 412.5069853730.
The spelling of 70193019 in words is "seventy million, one hundred ninety-three thousand, nineteen".
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