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214513431 = 3116797021
BaseRepresentation
bin11001100100100…
…11011100010111
3112221122102002220
430302103130113
5414403412211
633141433423
75213222406
oct1462233427
9487572086
10214513431
111000a6130
125ba0b873
1335599332
14206bd63d
1513c74806
hexcc93717

214513431 has 16 divisors (see below), whose sum is σ = 316679808. Its totient is φ = 128066400.

The previous prime is 214513427. The next prime is 214513451. The reversal of 214513431 is 134315412.

It is a happy number.

It is not a de Polignac number, because 214513431 - 22 = 214513427 is a prime.

It is a super-2 number, since 2×2145134312 = 92032024158783522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214513451) 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, 46300 + ... + 50721.

It is an arithmetic number, because the mean of its divisors is an integer number (19792488).

Almost surely, 2214513431 is an apocalyptic number.

214513431 is a deficient number, since it is larger than the sum of its proper divisors (102166377).

214513431 is a wasteful number, since it uses less digits than its factorization.

214513431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97102.

The product of its digits is 1440, while the sum is 24.

The square root of 214513431 is about 14646.2770354790. The cubic root of 214513431 is about 598.6203773894.

Adding to 214513431 its reverse (134315412), we get a palindrome (348828843).

It can be divided in two parts, 2145 and 13431, that added together give a triangular number (15576 = T176).

The spelling of 214513431 in words is "two hundred fourteen million, five hundred thirteen thousand, four hundred thirty-one".

Divisors: 1 3 11 33 67 201 737 2211 97021 291063 1067231 3201693 6500407 19501221 71504477 214513431