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30668674 = 215334337
BaseRepresentation
bin111010011111…
…1011110000010
32010201010111211
41310333132002
530322344144
63013200334
7521452021
oct164773602
963633454
1030668674
1116347913
12a3300aa
13647a45a
1441048b8
152a5c034
hex1d3f782

30668674 has 4 divisors (see below), whose sum is σ = 46003014. Its totient is φ = 15334336.

The previous prime is 30668633. The next prime is 30668681. The reversal of 30668674 is 47686603.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47686603 = 148732069.

It can be written as a sum of positive squares in only one way, i.e., 16867449 + 13801225 = 4107^2 + 3715^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7667167 + ... + 7667170.

Almost surely, 230668674 is an apocalyptic number.

30668674 is a deficient number, since it is larger than the sum of its proper divisors (15334340).

30668674 is a wasteful number, since it uses less digits than its factorization.

30668674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15334339.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 30668674 is about 5537.9304798815. The cubic root of 30668674 is about 313.0148917575.

The spelling of 30668674 in words is "thirty million, six hundred sixty-eight thousand, six hundred seventy-four".

Divisors: 1 2 15334337 30668674