Search a number
-
+
30764550 = 2352205097
BaseRepresentation
bin111010101011…
…0111000000110
32010220000000210
41311112320012
530333431200
63015220250
7522331365
oct165267006
963800023
1030764550
1116402953
12a377686
1364b1c9b
14412b7dc
152a7a650
hex1d56e06

30764550 has 24 divisors (see below), whose sum is σ = 76296456. Its totient is φ = 8203840.

The previous prime is 30764519. The next prime is 30764579. The reversal of 30764550 is 5546703.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102399 + ... + 102698.

It is an arithmetic number, because the mean of its divisors is an integer number (3179019).

Almost surely, 230764550 is an apocalyptic number.

30764550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30764550 is an abundant number, since it is smaller than the sum of its proper divisors (45531906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30764550 is a wasteful number, since it uses less digits than its factorization.

30764550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205112 (or 205107 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 30764550 is about 5546.5800273682. The cubic root of 30764550 is about 313.3407334402.

It can be divided in two parts, 3076 and 4550, that added together give a triangular number (7626 = T123).

The spelling of 30764550 in words is "thirty million, seven hundred sixty-four thousand, five hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 205097 410194 615291 1025485 1230582 2050970 3076455 5127425 6152910 10254850 15382275 30764550