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30606025642 = 244334544047
BaseRepresentation
bin11100100000010000…
…101110001110101010
32220222222122012021021
4130200100232032222
51000140120310032
622021001203054
72132305632313
oct344020561652
986888565237
1030606025642
1111a86338075
125b21a9048a
132b69ac055a
1416a4b1d60a
15be1e37097
hex72042e3aa

30606025642 has 8 divisors (see below), whose sum is σ = 46012671936. Its totient is φ = 15268468332.

The previous prime is 30606025603. The next prime is 30606025649. The reversal of 30606025642 is 24652060603.

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

It is a junction number, because it is equal to n+sod(n) for n = 30606025598 and 30606025607.

It is not an unprimeable number, because it can be changed into a prime (30606025649) 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, 17271138 + ... + 17272909.

It is an arithmetic number, because the mean of its divisors is an integer number (5751583992).

Almost surely, 230606025642 is an apocalyptic number.

30606025642 is a deficient number, since it is larger than the sum of its proper divisors (15406646294).

30606025642 is a wasteful number, since it uses less digits than its factorization.

30606025642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34544492.

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 30606025642 in words is "thirty billion, six hundred six million, twenty-five thousand, six hundred forty-two".

Divisors: 1 2 443 886 34544047 69088094 15303012821 30606025642