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641214255 = 351137105031
BaseRepresentation
bin100110001110000…
…010011100101111
31122200120001121010
4212032002130233
52303122324010
6143343240303
721614142213
oct4616023457
91580501533
10641214255
112a9a48840
1215a8a9093
13a2ac9026
1461234943
153b45e620
hex2638272f

641214255 has 32 divisors (see below), whose sum is σ = 1149470208. Its totient is φ = 302486400.

The previous prime is 641214253. The next prime is 641214257. The reversal of 641214255 is 552412146.

641214255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (641214253) and next prime (641214257).

It is not a de Polignac number, because 641214255 - 21 = 641214253 is a prime.

It is a super-2 number, since 2×6412142552 = 822311441630410050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641214253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46411 + ... + 58620.

It is an arithmetic number, because the mean of its divisors is an integer number (35920944).

Almost surely, 2641214255 is an apocalyptic number.

641214255 is a deficient number, since it is larger than the sum of its proper divisors (508255953).

641214255 is a wasteful number, since it uses less digits than its factorization.

641214255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105087.

The product of its digits is 9600, while the sum is 30.

The square root of 641214255 is about 25322.2087306775. The cubic root of 641214255 is about 862.3185385946.

The spelling of 641214255 in words is "six hundred forty-one million, two hundred fourteen thousand, two hundred fifty-five".

Divisors: 1 3 5 11 15 33 37 55 111 165 185 407 555 1221 2035 6105 105031 315093 525155 1155341 1575465 3466023 3886147 5776705 11658441 17330115 19430735 42747617 58292205 128242851 213738085 641214255