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214851401 = 297408669
BaseRepresentation
bin11001100111001…
…01111101001001
3112222021120201022
430303211331021
5420000221101
633153002225
75216130632
oct1463457511
9488246638
10214851401
11100307046
125bb53375
133568710b
142076a889
1513cdea1b
hexcce5f49

214851401 has 4 divisors (see below), whose sum is σ = 222260100. Its totient is φ = 207442704.

The previous prime is 214851353. The next prime is 214851431. The reversal of 214851401 is 104158412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 127148176 + 87703225 = 11276^2 + 9365^2 .

It is a cyclic number.

It is not a de Polignac number, because 214851401 - 214 = 214835017 is a prime.

It is a super-2 number, since 2×2148514012 = 92322249023325602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214851431) 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, 3704306 + ... + 3704363.

It is an arithmetic number, because the mean of its divisors is an integer number (55565025).

Almost surely, 2214851401 is an apocalyptic number.

It is an amenable number.

214851401 is a deficient number, since it is larger than the sum of its proper divisors (7408699).

214851401 is an equidigital number, since it uses as much as digits as its factorization.

214851401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7408698.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 214851401 is about 14657.8102389136. The cubic root of 214851401 is about 598.9345917024.

The spelling of 214851401 in words is "two hundred fourteen million, eight hundred fifty-one thousand, four hundred one".

Divisors: 1 29 7408669 214851401