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30140214 = 2313386413
BaseRepresentation
bin111001011111…
…0011100110110
32002201021121020
41302332130312
530203441324
62554002010
7514121226
oct162763466
962637536
1030140214
1116016875
12a116306
136323a60
144008086
1529a5679
hex1cbe736

30140214 has 16 divisors (see below), whose sum is σ = 64917552. Its totient is φ = 9273888.

The previous prime is 30140191. The next prime is 30140219. The reversal of 30140214 is 41204103.

It is a junction number, because it is equal to n+sod(n) for n = 30140193 and 30140202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30140219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193129 + ... + 193284.

It is an arithmetic number, because the mean of its divisors is an integer number (4057347).

Almost surely, 230140214 is an apocalyptic number.

30140214 is an abundant number, since it is smaller than the sum of its proper divisors (34777338).

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

30140214 is a wasteful number, since it uses less digits than its factorization.

30140214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386431.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 30140214 is about 5490.0103825038. The cubic root of 30140214 is about 311.2065844832.

Adding to 30140214 its reverse (41204103), we get a palindrome (71344317).

The spelling of 30140214 in words is "thirty million, one hundred forty thousand, two hundred fourteen".

Divisors: 1 2 3 6 13 26 39 78 386413 772826 1159239 2318478 5023369 10046738 15070107 30140214