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30051070 = 2571725253
BaseRepresentation
bin111001010100…
…0101011111110
32002112202022121
41302220223332
530143113240
62552033154
7513300310
oct162505376
962482277
1030051070
1115a658a5
12a0927ba
1362c22ca
143dc37b0
15298904a
hex1ca8afe

30051070 has 32 divisors (see below), whose sum is σ = 65458368. Its totient is φ = 9696768.

The previous prime is 30051037. The next prime is 30051079. The reversal of 30051070 is 7015003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30051079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11437 + ... + 13816.

It is an arithmetic number, because the mean of its divisors is an integer number (2045574).

Almost surely, 230051070 is an apocalyptic number.

30051070 is an abundant number, since it is smaller than the sum of its proper divisors (35407298).

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

30051070 is a wasteful number, since it uses less digits than its factorization.

30051070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25284.

The product of its (nonzero) digits is 105, while the sum is 16.

The square root of 30051070 is about 5481.8856244909. The cubic root of 30051070 is about 310.8994688214.

Adding to 30051070 its reverse (7015003), we get a palindrome (37066073).

The spelling of 30051070 in words is "thirty million, fifty-one thousand, seventy".

Divisors: 1 2 5 7 10 14 17 34 35 70 85 119 170 238 595 1190 25253 50506 126265 176771 252530 353542 429301 858602 883855 1767710 2146505 3005107 4293010 6010214 15025535 30051070