Search a number
-
+
814419259431 = 31929523942049
BaseRepresentation
bin10111101100111110010…
…10111011000000100111
32212212011021112000101020
423312133022323000213
5101320412312300211
61422050011102223
7112561032325161
oct13663712730047
92785137460336
10814419259431
11294436492828
12111a0b441973
135ba513b114b
142b5bd3b7931
15162b9140306
hexbd9f2bb027

814419259431 has 32 divisors (see below), whose sum is σ = 1184722080000. Its totient is φ = 495683048448.

The previous prime is 814419259429. The next prime is 814419259441. The reversal of 814419259431 is 134952914418.

It is not a de Polignac number, because 814419259431 - 21 = 814419259429 is a prime.

It is a super-2 number, since 2×8144192594312 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814419259441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 393495 + ... + 1335543.

It is an arithmetic number, because the mean of its divisors is an integer number (37022565000).

Almost surely, 2814419259431 is an apocalyptic number.

814419259431 is a deficient number, since it is larger than the sum of its proper divisors (370302820569).

814419259431 is a wasteful number, since it uses less digits than its factorization.

814419259431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942623.

The product of its digits is 1244160, while the sum is 51.

The spelling of 814419259431 in words is "eight hundred fourteen billion, four hundred nineteen million, two hundred fifty-nine thousand, four hundred thirty-one".

Divisors: 1 3 19 29 57 87 523 551 1569 1653 9937 15167 29811 45501 288173 864519 942049 2826147 17898931 27319421 53696793 81958263 492691627 519068999 1478074881 1557206997 9361140913 14288057183 28083422739 42864171549 271473086477 814419259431