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70223033 = 271125903
BaseRepresentation
bin1000010111110…
…00010010111001
311220010200220002
410023320102321
5120434114113
610545042345
71511612606
oct413702271
9156120802
1070223033
1136703671
121b6263b5
13117191ba
14947d6ad
156271c58
hex42f84b9

70223033 has 4 divisors (see below), whose sum is σ = 70251648. Its totient is φ = 70194420.

The previous prime is 70223011. The next prime is 70223057. The reversal of 70223033 is 33032207.

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 70223033 - 28 = 70222777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 70222996 and 70223014.

It is not an unprimeable number, because it can be changed into a prime (70223093) 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, 10241 + ... + 15662.

It is an arithmetic number, because the mean of its divisors is an integer number (17562912).

Almost surely, 270223033 is an apocalyptic number.

It is an amenable number.

70223033 is a deficient number, since it is larger than the sum of its proper divisors (28615).

70223033 is a wasteful number, since it uses less digits than its factorization.

70223033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28614.

The product of its (nonzero) digits is 756, while the sum is 20.

The square root of 70223033 is about 8379.9184363572. The cubic root of 70223033 is about 412.5657719427.

The spelling of 70223033 in words is "seventy million, two hundred twenty-three thousand, thirty-three".

Divisors: 1 2711 25903 70223033