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30220001 = 729148867
BaseRepresentation
bin111001101000…
…1111011100001
32002212100001022
41303101323201
530214020001
62555415225
7514602650
oct163217341
962770038
1030220001
1116070809
12a154515
136351176
144029197
1529be11b
hex1cd1ee1

30220001 has 8 divisors (see below), whose sum is σ = 35728320. Its totient is φ = 25009488.

The previous prime is 30219983. The next prime is 30220007. The reversal of 30220001 is 10002203.

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

It is not a de Polignac number, because 30220001 - 218 = 29957857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30220007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74231 + ... + 74636.

It is an arithmetic number, because the mean of its divisors is an integer number (4466040).

Almost surely, 230220001 is an apocalyptic number.

It is an amenable number.

30220001 is a deficient number, since it is larger than the sum of its proper divisors (5508319).

30220001 is a wasteful number, since it uses less digits than its factorization.

30220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148903.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 30220001 is about 5497.2721417081. The cubic root of 30220001 is about 311.4809506149.

Adding to 30220001 its reverse (10002203), we get a palindrome (40222204).

The spelling of 30220001 in words is "thirty million, two hundred twenty thousand, one".

Divisors: 1 7 29 203 148867 1042069 4317143 30220001