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30412929 = 310137643
BaseRepresentation
bin111010000000…
…1000010000001
32010020010200210
41310001002001
530241203204
63003504333
7516335301
oct164010201
963203623
1030412929
1116192758
12a2280a9
1363bac21
144079601
152a0b389
hex1d01081

30412929 has 4 divisors (see below), whose sum is σ = 40550576. Its totient is φ = 20275284.

The previous prime is 30412919. The next prime is 30412951. The reversal of 30412929 is 92921403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30412929 - 25 = 30412897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30412896 and 30412905.

It is not an unprimeable number, because it can be changed into a prime (30412919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5068819 + ... + 5068824.

It is an arithmetic number, because the mean of its divisors is an integer number (10137644).

Almost surely, 230412929 is an apocalyptic number.

It is an amenable number.

30412929 is a deficient number, since it is larger than the sum of its proper divisors (10137647).

30412929 is a wasteful number, since it uses less digits than its factorization.

30412929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10137646.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 30412929 is about 5514.7918365066. The cubic root of 30412929 is about 312.1423885745.

The spelling of 30412929 in words is "thirty million, four hundred twelve thousand, nine hundred twenty-nine".

Divisors: 1 3 10137643 30412929