Search a number
-
+
30154706 = 219378121
BaseRepresentation
bin111001100000…
…1111111010010
32002202000110222
41303001333102
530204422311
62554153042
7514211411
oct163017722
962660428
1030154706
111602674a
12a122782
13632a52a
14400d478
1529a9adb
hex1cc1fd2

30154706 has 8 divisors (see below), whose sum is σ = 45467004. Its totient is φ = 14999040.

The previous prime is 30154703. The next prime is 30154711. The reversal of 30154706 is 60745103.

It can be written as a sum of positive squares in 2 ways, for example, as 29800681 + 354025 = 5459^2 + 595^2 .

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

It is not an unprimeable number, because it can be changed into a prime (30154703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38675 + ... + 39446.

Almost surely, 230154706 is an apocalyptic number.

30154706 is a deficient number, since it is larger than the sum of its proper divisors (15312298).

30154706 is a wasteful number, since it uses less digits than its factorization.

30154706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78316.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 30154706 is about 5491.3300756738. The cubic root of 30154706 is about 311.2564545470.

Adding to 30154706 its reverse (60745103), we get a palindrome (90899809).

The spelling of 30154706 in words is "thirty million, one hundred fifty-four thousand, seven hundred six".

Divisors: 1 2 193 386 78121 156242 15077353 30154706