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69948213 = 323316071
BaseRepresentation
bin1000010101101…
…01001100110101
311212121201220120
410022311030311
5120401320323
610535122153
71506356436
oct412651465
9155551816
1069948213
1136536145
121b513359
131165109a
14940b48d
15621a5e3
hex42b5335

69948213 has 4 divisors (see below), whose sum is σ = 93264288. Its totient is φ = 46632140.

The previous prime is 69948209. The next prime is 69948223. The reversal of 69948213 is 31284996.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 69948213 - 22 = 69948209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69948223) 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 3 ways as a sum of consecutive naturals, for example, 11658033 + ... + 11658038.

It is an arithmetic number, because the mean of its divisors is an integer number (23316072).

Almost surely, 269948213 is an apocalyptic number.

It is an amenable number.

69948213 is a deficient number, since it is larger than the sum of its proper divisors (23316075).

69948213 is a wasteful number, since it uses less digits than its factorization.

69948213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23316074.

The product of its digits is 93312, while the sum is 42.

The square root of 69948213 is about 8363.5048275230. The cubic root of 69948213 is about 412.0268720494.

The spelling of 69948213 in words is "sixty-nine million, nine hundred forty-eight thousand, two hundred thirteen".

Divisors: 1 3 23316071 69948213