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30774223 = 592232339
BaseRepresentation
bin111010101100…
…1001111001111
32010220111022001
41311121033033
530334233343
63015333131
7522401524
oct165311717
963814261
1030774223
111640a147
12a3811a7
1364b64cc
14413114b
152a7d44d
hex1d593cf

30774223 has 8 divisors (see below), whose sum is σ = 31449600. Its totient is φ = 30104088.

The previous prime is 30774209. The next prime is 30774229. The reversal of 30774223 is 32247703.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30774223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30774191 and 30774200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30774229) 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, 11988 + ... + 14326.

It is an arithmetic number, because the mean of its divisors is an integer number (3931200).

Almost surely, 230774223 is an apocalyptic number.

30774223 is a deficient number, since it is larger than the sum of its proper divisors (675377).

30774223 is a wasteful number, since it uses less digits than its factorization.

30774223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621.

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 30774223 is about 5547.4519376016. The cubic root of 30774223 is about 313.3735702314.

The spelling of 30774223 in words is "thirty million, seven hundred seventy-four thousand, two hundred twenty-three".

Divisors: 1 59 223 2339 13157 138001 521597 30774223