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30070618 = 237939671
BaseRepresentation
bin111001010110…
…1011101011010
32002120202010121
41302231131122
530144224433
62552303454
7513411304
oct162553532
962522117
1030070618
1115a79556
12a0a1b8a
1362cb186
143dca974
15298ec2d
hex1cad75a

30070618 has 8 divisors (see below), whose sum is σ = 45226080. Its totient is φ = 14995260.

The previous prime is 30070613. The next prime is 30070627. The reversal of 30070618 is 81607003.

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 = 30070592 and 30070601.

It is not an unprimeable number, because it can be changed into a prime (30070613) 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, 19078 + ... + 20593.

It is an arithmetic number, because the mean of its divisors is an integer number (5653260).

Almost surely, 230070618 is an apocalyptic number.

30070618 is a deficient number, since it is larger than the sum of its proper divisors (15155462).

30070618 is a wasteful number, since it uses less digits than its factorization.

30070618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40052.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 30070618 is about 5483.6682977729. The cubic root of 30070618 is about 310.9668668155.

The spelling of 30070618 in words is "thirty million, seventy thousand, six hundred eighteen".

Divisors: 1 2 379 758 39671 79342 15035309 30070618