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30601305 = 3257195113
BaseRepresentation
bin111010010111…
…1000001011001
32010120201002200
41310233001121
530313220210
63011520413
7521051430
oct164570131
963521080
1030601305
1116301239
12a2b9109
1364558a7
1440c8117
152a470c0
hex1d2f059

30601305 has 48 divisors (see below), whose sum is σ = 63822720. Its totient is φ = 13250304.

The previous prime is 30601301. The next prime is 30601357. The reversal of 30601305 is 50310603.

30601305 is a `hidden beast` number, since 30 + 601 + 30 + 5 = 666.

It is not a de Polignac number, because 30601305 - 22 = 30601301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30601301) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 3429 + ... + 8541.

It is an arithmetic number, because the mean of its divisors is an integer number (1329640).

Almost surely, 230601305 is an apocalyptic number.

30601305 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30601305 is an abundant number, since it is smaller than the sum of its proper divisors (33221415).

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

30601305 is a wasteful number, since it uses less digits than its factorization.

30601305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5150 (or 5147 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 30601305 is about 5531.8446290546. The cubic root of 30601305 is about 312.7855267722.

Adding to 30601305 its reverse (50310603), we get a palindrome (80911908).

The spelling of 30601305 in words is "thirty million, six hundred one thousand, three hundred five".

Divisors: 1 3 5 7 9 15 19 21 35 45 57 63 95 105 133 171 285 315 399 665 855 1197 1995 5113 5985 15339 25565 35791 46017 76695 97147 107373 178955 230085 291441 322119 485735 536865 680029 874323 1457205 1610595 2040087 3400145 4371615 6120261 10200435 30601305