Search a number
-
+
1101342431 = 71091443437
BaseRepresentation
bin100000110100101…
…0010011011011111
32211202100222210102
41001221102123133
54223420424211
6301141331315
736202153610
oct10151223337
92752328712
101101342431
11515751962
12268a06b3b
13147230a17
14a63abc07
1566a4da3b
hex41a526df

1101342431 has 8 divisors (see below), whose sum is σ = 1270225440. Its totient is φ = 935346528.

The previous prime is 1101342427. The next prime is 1101342443. The reversal of 1101342431 is 1342431011.

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 1101342431 - 22 = 1101342427 is a prime.

It is a super-2 number, since 2×11013424312 = 2425910300641979522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101342461) 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, 720956 + ... + 722481.

It is an arithmetic number, because the mean of its divisors is an integer number (158778180).

Almost surely, 21101342431 is an apocalyptic number.

1101342431 is a deficient number, since it is larger than the sum of its proper divisors (168883009).

1101342431 is a wasteful number, since it uses less digits than its factorization.

1101342431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443553.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1101342431 is about 33186.4796415649. The cubic root of 1101342431 is about 1032.6998734819.

Adding to 1101342431 its reverse (1342431011), we get a palindrome (2443773442).

The spelling of 1101342431 in words is "one billion, one hundred one million, three hundred forty-two thousand, four hundred thirty-one".

Divisors: 1 7 109 763 1443437 10104059 157334633 1101342431