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30730001 = 234672861
BaseRepresentation
bin111010100111…
…0011100010001
32010211020122012
41311032130101
530331330001
63014352305
7522125561
oct165163421
963736565
1030730001
11163899a5
12a35b695
13649c343
14411cda1
152a702bb
hex1d4e711

30730001 has 8 divisors (see below), whose sum is σ = 32145984. Its totient is φ = 29320720.

The previous prime is 30729971. The next prime is 30730013. The reversal of 30730001 is 10003703.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30730001 is a prime.

It is a super-2 number, since 2×307300012 = 1888665922920002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30730061) 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 7 ways as a sum of consecutive naturals, for example, 9311 + ... + 12171.

It is an arithmetic number, because the mean of its divisors is an integer number (4018248).

Almost surely, 230730001 is an apocalyptic number.

It is an amenable number.

30730001 is a deficient number, since it is larger than the sum of its proper divisors (1415983).

30730001 is a wasteful number, since it uses less digits than its factorization.

30730001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351.

The product of its (nonzero) digits is 63, while the sum is 14.

The square root of 30730001 is about 5543.4647108104. The cubic root of 30730001 is about 313.2233942304.

Adding to 30730001 its reverse (10003703), we get a palindrome (40733704).

The spelling of 30730001 in words is "thirty million, seven hundred thirty thousand, one".

Divisors: 1 23 467 2861 10741 65803 1336087 30730001