Search a number
-
+
134144031 = 376387811
BaseRepresentation
bin1111111111011…
…10000000011111
3100100102020000110
413333232000133
5233320102111
621151101103
73216130320
oct777560037
9310366013
10134144031
11697a243a
1238b11793
1321a39a88
1413b5c447
15bb9b5a6
hex7fee01f

134144031 has 8 divisors (see below), whose sum is σ = 204409984. Its totient is φ = 76653720.

The previous prime is 134144029. The next prime is 134144033. The reversal of 134144031 is 130441431.

It is an interprime number because it is at equal distance from previous prime (134144029) and next prime (134144033).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 134144031 - 21 = 134144029 is a prime.

It is a super-2 number, since 2×1341440312 = 35989242105857922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 6387811 = 134144031 / (1 + 3 + 4 + 1 + 4 + 4 + 0 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134143989 and 134144007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134144033) 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, 3193885 + ... + 3193926.

It is an arithmetic number, because the mean of its divisors is an integer number (25551248).

Almost surely, 2134144031 is an apocalyptic number.

134144031 is a deficient number, since it is larger than the sum of its proper divisors (70265953).

134144031 is an equidigital number, since it uses as much as digits as its factorization.

134144031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6387821.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 134144031 is about 11582.0564236236. The cubic root of 134144031 is about 511.9062722616.

Subtracting from 134144031 its sum of digits (21), we obtain a triangular number (134144010 = T16379).

Adding to 134144031 its reverse (130441431), we get a palindrome (264585462).

The spelling of 134144031 in words is "one hundred thirty-four million, one hundred forty-four thousand, thirty-one".

Divisors: 1 3 7 21 6387811 19163433 44714677 134144031