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214152731 = 13112314669
BaseRepresentation
bin11001100001110…
…11011000011011
3112220222002022122
430300323120123
5414310341411
633130011455
75210160662
oct1460733033
9486862278
10214152731
11aa97a131
125b876b8b
13354a10c0
1420627dd9
1513c029db
hexcc3b61b

214152731 has 8 divisors (see below), whose sum is σ = 230847120. Its totient is φ = 197489952.

The previous prime is 214152709. The next prime is 214152737. The reversal of 214152731 is 137251412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 214152731 - 214 = 214136347 is a prime.

It is a super-2 number, since 2×2141527312 = 91722784389516722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214152731.

It is not an unprimeable number, because it can be changed into a prime (214152737) 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, 7265 + ... + 21933.

It is an arithmetic number, because the mean of its divisors is an integer number (28855890).

Almost surely, 2214152731 is an apocalyptic number.

214152731 is a deficient number, since it is larger than the sum of its proper divisors (16694389).

214152731 is a wasteful number, since it uses less digits than its factorization.

214152731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15805.

The product of its digits is 1680, while the sum is 26.

The square root of 214152731 is about 14633.9581453549. The cubic root of 214152731 is about 598.2846664655.

It can be divided in two parts, 2141 and 52731, that added together give a cube (54872 = 383).

The spelling of 214152731 in words is "two hundred fourteen million, one hundred fifty-two thousand, seven hundred thirty-one".