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30420214 = 2112379761
BaseRepresentation
bin111010000001…
…0110011110110
32010020111200121
41310002303312
530241421324
63004002154
7516365446
oct164026366
963214617
1030420214
1116198180
12a23035a
1363c1336
14407c126
152a0d5e4
hex1d02cf6

30420214 has 32 divisors (see below), whose sum is σ = 52669440. Its totient is φ = 13041600.

The previous prime is 30420209. The next prime is 30420227. The reversal of 30420214 is 41202403.

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, 39594 + ... + 40354.

It is an arithmetic number, because the mean of its divisors is an integer number (1645920).

Almost surely, 230420214 is an apocalyptic number.

30420214 is a deficient number, since it is larger than the sum of its proper divisors (22249226).

30420214 is a wasteful number, since it uses less digits than its factorization.

30420214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 30420214 is about 5515.4522933301. The cubic root of 30420214 is about 312.1673097273.

Adding to 30420214 its reverse (41202403), we get a palindrome (71622617).

The spelling of 30420214 in words is "thirty million, four hundred twenty thousand, two hundred fourteen".

Divisors: 1 2 11 22 23 46 79 158 253 506 761 869 1522 1738 1817 3634 8371 16742 17503 19987 35006 39974 60119 120238 192533 385066 661309 1322618 1382737 2765474 15210107 30420214