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30940041 = 311937577
BaseRepresentation
bin111011000000…
…1101110001001
32011012220202110
41312001232021
530410040131
63023052533
7523662126
oct166015611
964186673
1030940041
1116512790
12a441149
136543b22
14417574d
152ab2646
hex1d81b89

30940041 has 8 divisors (see below), whose sum is σ = 45003744. Its totient is φ = 18751520.

The previous prime is 30940003. The next prime is 30940043. The reversal of 30940041 is 14004903.

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 30940041 - 29 = 30939529 is a prime.

It is a super-2 number, since 2×309400412 = 1914572274163362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30940043) 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, 468756 + ... + 468821.

It is an arithmetic number, because the mean of its divisors is an integer number (5625468).

Almost surely, 230940041 is an apocalyptic number.

It is an amenable number.

30940041 is a deficient number, since it is larger than the sum of its proper divisors (14063703).

30940041 is a wasteful number, since it uses less digits than its factorization.

30940041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937591.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 30940041 is about 5562.3772795451. The cubic root of 30940041 is about 313.9354032941.

Adding to 30940041 its reverse (14004903), we get a palindrome (44944944).

The spelling of 30940041 in words is "thirty million, nine hundred forty thousand, forty-one".

Divisors: 1 3 11 33 937577 2812731 10313347 30940041