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134401031 = 178639161
BaseRepresentation
bin10000000001011…
…00110000000111
3100100220021112222
420000230300013
5233401313111
621200402555
73221250512
oct1000546007
9310807488
10134401031
1169958536
123901645b
1321ac9a4b
1413bc7d79
15bbec7db
hex802cc07

134401031 has 8 divisors (see below), whose sum is σ = 142487424. Its totient is φ = 126334720.

The previous prime is 134401021. The next prime is 134401061. The reversal of 134401031 is 130104431.

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 134401031 - 26 = 134400967 is a prime.

It is a super-3 number, since 3×1344010313 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134401021) 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, 10091 + ... + 19251.

It is an arithmetic number, because the mean of its divisors is an integer number (17810928).

Almost surely, 2134401031 is an apocalyptic number.

134401031 is a deficient number, since it is larger than the sum of its proper divisors (8086393).

134401031 is an equidigital number, since it uses as much as digits as its factorization.

134401031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10041.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 134401031 is about 11593.1458629658. The cubic root of 134401031 is about 512.2329757904.

Adding to 134401031 its reverse (130104431), we get a palindrome (264505462).

It can be divided in two parts, 13 and 4401031, that added together give a palindrome (4401044).

The spelling of 134401031 in words is "one hundred thirty-four million, four hundred one thousand, thirty-one".

Divisors: 1 17 863 9161 14671 155737 7905943 134401031