Search a number
-
+
70213 = 1113491
BaseRepresentation
bin10001001001000101
310120022111
4101021011
54221323
61301021
7411463
oct211105
9116274
1070213
1148830
1234771
1325c60
141b833
1515c0d
hex11245

70213 has 8 divisors (see below), whose sum is σ = 82656. Its totient is φ = 58800.

The previous prime is 70207. The next prime is 70223. The reversal of 70213 is 31207.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70213 - 25 = 70181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 70193 and 70202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103 + ... + 388.

It is an arithmetic number, because the mean of its divisors is an integer number (10332).

270213 is an apocalyptic number.

It is an amenable number.

70213 is a deficient number, since it is larger than the sum of its proper divisors (12443).

70213 is a wasteful number, since it uses less digits than its factorization.

70213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515.

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 70213 is about 264.9773575232. The cubic root of 70213 is about 41.2546122789.

The spelling of 70213 in words is "seventy thousand, two hundred thirteen".

Divisors: 1 11 13 143 491 5401 6383 70213