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214142725 = 5210184809
BaseRepresentation
bin11001100001110…
…00111100000101
3112220221120121001
430300320330011
5414310031400
633125453301
75210116546
oct1460707405
9486846531
10214142725
11aa972665
125b871231
1335499694
14206244cd
1513beea6a
hexcc38f05

214142725 has 12 divisors (see below), whose sum is σ = 268169220. Its totient is φ = 169616000.

The previous prime is 214142723. The next prime is 214142741. The reversal of 214142725 is 527241412.

It can be written as a sum of positive squares in 6 ways, for example, as 1653796 + 212488929 = 1286^2 + 14577^2 .

It is not a de Polignac number, because 214142725 - 21 = 214142723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 214142693 and 214142702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214142723) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 39880 + ... + 44929.

It is an arithmetic number, because the mean of its divisors is an integer number (22347435).

Almost surely, 2214142725 is an apocalyptic number.

214142725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

214142725 is a deficient number, since it is larger than the sum of its proper divisors (54026495).

214142725 is a wasteful number, since it uses less digits than its factorization.

214142725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84920 (or 84915 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 214142725 is about 14633.6162652982. The cubic root of 214142725 is about 598.2753483033.

The spelling of 214142725 in words is "two hundred fourteen million, one hundred forty-two thousand, seven hundred twenty-five".

Divisors: 1 5 25 101 505 2525 84809 424045 2120225 8565709 42828545 214142725