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30031417 = 1310692161
BaseRepresentation
bin111001010001…
…1111000111001
32002111202100201
41302203320321
530142001132
62551402201
7513156103
oct162437071
962452321
1030031417
1115a52059
12a083361
1362b6390
143dba573
1529832e7
hex1ca3e39

30031417 has 8 divisors (see below), whose sum is σ = 32386760. Its totient is φ = 27682560.

The previous prime is 30031403. The next prime is 30031423. The reversal of 30031417 is 71413003.

It can be written as a sum of positive squares in 4 ways, for example, as 1771561 + 28259856 = 1331^2 + 5316^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 30031417 - 211 = 30029369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30031394 and 30031403.

It is not an unprimeable number, because it can be changed into a prime (30031447) 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, 12817 + ... + 14977.

It is an arithmetic number, because the mean of its divisors is an integer number (4048345).

Almost surely, 230031417 is an apocalyptic number.

It is an amenable number.

30031417 is a deficient number, since it is larger than the sum of its proper divisors (2355343).

30031417 is a wasteful number, since it uses less digits than its factorization.

30031417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 30031417 is about 5480.0927911852. The cubic root of 30031417 is about 310.8316793359.

The spelling of 30031417 in words is "thirty million, thirty-one thousand, four hundred seventeen".

Divisors: 1 13 1069 2161 13897 28093 2310109 30031417