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30162001 = 291040069
BaseRepresentation
bin111001100001…
…1110001010001
32002202101111011
41303003301101
530210141001
62554250521
7514241602
oct163036121
962671434
1030162001
1116031181
12a126a41
13633094c
144011da9
1529abd51
hex1cc3c51

30162001 has 4 divisors (see below), whose sum is σ = 31202100. Its totient is φ = 29121904.

The previous prime is 30161981. The next prime is 30162023. The reversal of 30162001 is 10026103.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10368400 + 19793601 = 3220^2 + 4449^2 .

It is a cyclic number.

It is not a de Polignac number, because 30162001 - 211 = 30159953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30162061) 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, 520006 + ... + 520063.

It is an arithmetic number, because the mean of its divisors is an integer number (7800525).

Almost surely, 230162001 is an apocalyptic number.

It is an amenable number.

30162001 is a deficient number, since it is larger than the sum of its proper divisors (1040099).

30162001 is a wasteful number, since it uses less digits than its factorization.

30162001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040098.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 30162001 is about 5491.9942643816. The cubic root of 30162001 is about 311.2815521526.

Adding to 30162001 its reverse (10026103), we get a palindrome (40188104).

The spelling of 30162001 in words is "thirty million, one hundred sixty-two thousand, one".

Divisors: 1 29 1040069 30162001