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146930669 = 314739699
BaseRepresentation
bin10001100000111…
…11101111101101
3101020110211222122
420300133233231
5300103240134
622325122325
73432614204
oct1060375755
9336424878
10146930669
1175a36206
12412593a5
1324595b32
141572a23b
15cd7502e
hex8c1fbed

146930669 has 4 divisors (see below), whose sum is σ = 151670400. Its totient is φ = 142190940.

The previous prime is 146930611. The next prime is 146930671. The reversal of 146930669 is 966039641.

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 146930669 - 212 = 146926573 is a prime.

It is a super-2 number, since 2×1469306692 = 43177242985575122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146930689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2369819 + ... + 2369880.

It is an arithmetic number, because the mean of its divisors is an integer number (37917600).

Almost surely, 2146930669 is an apocalyptic number.

It is an amenable number.

146930669 is a deficient number, since it is larger than the sum of its proper divisors (4739731).

146930669 is an equidigital number, since it uses as much as digits as its factorization.

146930669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4739730.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 146930669 is about 12121.4961535282. The cubic root of 146930669 is about 527.6802244253.

The spelling of 146930669 in words is "one hundred forty-six million, nine hundred thirty thousand, six hundred sixty-nine".

Divisors: 1 31 4739699 146930669