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30162070 = 2531149653
BaseRepresentation
bin111001100001…
…1110010010110
32002202101120201
41303003302112
530210141240
62554251114
7514242031
oct163036226
962671521
1030162070
1116031234
12a126a9a
1363309a3
144012018
1529abd9a
hex1cc3c96

30162070 has 32 divisors (see below), whose sum is σ = 56505600. Its totient is φ = 11579520.

The previous prime is 30162061. The next prime is 30162113. The reversal of 30162070 is 7026103.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 45864 + ... + 46516.

It is an arithmetic number, because the mean of its divisors is an integer number (1765800).

Almost surely, 230162070 is an apocalyptic number.

30162070 is a deficient number, since it is larger than the sum of its proper divisors (26343530).

30162070 is a wasteful number, since it uses less digits than its factorization.

30162070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 30162070 is about 5492.0005462491. Note that the first 3 decimals coincide. The cubic root of 30162070 is about 311.2817895199.

Adding to 30162070 its reverse (7026103), we get a palindrome (37188173).

The spelling of 30162070 in words is "thirty million, one hundred sixty-two thousand, seventy".

Divisors: 1 2 5 10 31 62 149 155 298 310 653 745 1306 1490 3265 4619 6530 9238 20243 23095 40486 46190 97297 101215 194594 202430 486485 972970 3016207 6032414 15081035 30162070