Search a number
-
+
30481773 = 372316689
BaseRepresentation
bin111010001000…
…1110101101101
32010100122010120
41310101311231
530300404043
63005155153
7520043100
oct164216555
963318116
1030481773
111622a453
12a25bab9
13641336a
144096737
152a21983
hex1d11d6d

30481773 has 24 divisors (see below), whose sum is σ = 48810240. Its totient is φ = 16853760.

The previous prime is 30481753. The next prime is 30481777. The reversal of 30481773 is 37718403.

It is not a de Polignac number, because 30481773 - 29 = 30481261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30481777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1213 + ... + 7901.

It is an arithmetic number, because the mean of its divisors is an integer number (2033760).

Almost surely, 230481773 is an apocalyptic number.

It is an amenable number.

30481773 is a deficient number, since it is larger than the sum of its proper divisors (18328467).

30481773 is a wasteful number, since it uses less digits than its factorization.

30481773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6737 (or 6730 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 30481773 is about 5521.0300669350. The cubic root of 30481773 is about 312.3777373455.

The spelling of 30481773 in words is "thirty million, four hundred eighty-one thousand, seven hundred seventy-three".

Divisors: 1 3 7 21 31 49 93 147 217 651 1519 4557 6689 20067 46823 140469 207359 327761 622077 983283 1451513 4354539 10160591 30481773