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30077070 = 2351002569
BaseRepresentation
bin111001010111…
…1000010001110
32002121001222120
41302233002032
530144431240
62552353410
7513436152
oct162570216
962531876
1030077070
1115a83391
12a0a5866
1363010aa
143dcd062
152991ad0
hex1caf08e

30077070 has 16 divisors (see below), whose sum is σ = 72185040. Its totient is φ = 8020544.

The previous prime is 30077051. The next prime is 30077071. The reversal of 30077070 is 7077003.

It is a self number, because there is not a number n which added to its sum of digits gives 30077070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30077071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501255 + ... + 501314.

It is an arithmetic number, because the mean of its divisors is an integer number (4511565).

Almost surely, 230077070 is an apocalyptic number.

30077070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30077070 is an abundant number, since it is smaller than the sum of its proper divisors (42107970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30077070 is a wasteful number, since it uses less digits than its factorization.

30077070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002579.

The product of its (nonzero) digits is 1029, while the sum is 24.

The square root of 30077070 is about 5484.2565585501. The cubic root of 30077070 is about 310.9891057415.

The spelling of 30077070 in words is "thirty million, seventy-seven thousand, seventy".

Divisors: 1 2 3 5 6 10 15 30 1002569 2005138 3007707 5012845 6015414 10025690 15038535 30077070