Search a number
-
+
8140014140 = 2251259323273
BaseRepresentation
bin1111001010010111…
…01100001000111100
3210000021212120012012
413211023230020330
5113132320423030
63423420430352
7405500656436
oct74513541074
923007776165
108140014140
1134a790a115
1216b20a83b8
139c9556a1b
14573113656
15329956095
hex1e52ec23c

8140014140 has 24 divisors (see below), whose sum is σ = 17107660080. Its totient is φ = 3253409408.

The previous prime is 8140014121. The next prime is 8140014149. The reversal of 8140014140 is 414100418.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8140014149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136457 + ... + 186816.

It is an arithmetic number, because the mean of its divisors is an integer number (712819170).

Almost surely, 28140014140 is an apocalyptic number.

It is an amenable number.

8140014140 is an abundant number, since it is smaller than the sum of its proper divisors (8967645940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8140014140 is a wasteful number, since it uses less digits than its factorization.

8140014140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324541 (or 324539 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 8140014140 is about 90222.0269113923. The cubic root of 8140014140 is about 2011.6004299237.

Adding to 8140014140 its reverse (414100418), we get a palindrome (8554114558).

The spelling of 8140014140 in words is "eight billion, one hundred forty million, fourteen thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1259 2518 5036 6295 12590 25180 323273 646546 1293092 1616365 3232730 6465460 407000707 814001414 1628002828 2035003535 4070007070 8140014140