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214621412 = 2266181173
BaseRepresentation
bin11001100101011…
…01110011100100
3112221211220020012
430302231303210
5414420341122
633144025352
75214152255
oct1462556344
9487756205
10214621412
1110016a275
125ba62258
1335606525
142070ab2c
1513c967e2
hexccadce4

214621412 has 12 divisors (see below), whose sum is σ = 376160316. Its totient is φ = 107147040.

The previous prime is 214621403. The next prime is 214621417. The reversal of 214621412 is 214126412.

It can be written as a sum of positive squares in 2 ways, for example, as 113337316 + 101284096 = 10646^2 + 10064^2 .

It is not an unprimeable number, because it can be changed into a prime (214621417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37943 + ... + 43230.

It is an arithmetic number, because the mean of its divisors is an integer number (31346693).

Almost surely, 2214621412 is an apocalyptic number.

It is an amenable number.

214621412 is a deficient number, since it is larger than the sum of its proper divisors (161538904).

214621412 is a wasteful number, since it uses less digits than its factorization.

214621412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81838 (or 81836 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 214621412 is about 14649.9628668471. The cubic root of 214621412 is about 598.7208043318.

Adding to 214621412 its reverse (214126412), we get a palindrome (428747824).

The spelling of 214621412 in words is "two hundred fourteen million, six hundred twenty-one thousand, four hundred twelve".

Divisors: 1 2 4 661 1322 2644 81173 162346 324692 53655353 107310706 214621412