Search a number
-
+
7441422781 = 13877965203
BaseRepresentation
bin1101110111000101…
…10001100110111101
3201012121100110000011
412323202301212331
5110220001012111
63230223303221
7352256023102
oct67342614675
921177313004
107441422781
113179542091
12153814ab11
139178bb860
14508424aa9
152d8461021
hex1bb8b19bd

7441422781 has 8 divisors (see below), whose sum is σ = 8014875680. Its totient is φ = 6868117872.

The previous prime is 7441422763. The next prime is 7441422799. The reversal of 7441422781 is 1872241447.

It is an interprime number because it is at equal distance from previous prime (7441422763) and next prime (7441422799).

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 7441422781 - 217 = 7441291709 is a prime.

It is a super-2 number, since 2×74414227812 (a number of 21 digits) 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 (7441422761) 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, 81526 + ... + 146728.

It is an arithmetic number, because the mean of its divisors is an integer number (1001859460).

Almost surely, 27441422781 is an apocalyptic number.

It is an amenable number.

7441422781 is a deficient number, since it is larger than the sum of its proper divisors (573452899).

7441422781 is a wasteful number, since it uses less digits than its factorization.

7441422781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73995.

The product of its digits is 100352, while the sum is 40.

The square root of 7441422781 is about 86263.6817032522. The cubic root of 7441422781 is about 1952.3244497481.

The spelling of 7441422781 in words is "seven billion, four hundred forty-one million, four hundred twenty-two thousand, seven hundred eighty-one".

Divisors: 1 13 8779 65203 114127 847639 572417137 7441422781