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31444414411 = 1931531106417
BaseRepresentation
bin11101010010001110…
…111010111111001011
310000011102012202110011
4131102032322333023
51003344232230121
622240110532351
72162136053404
oct352216727713
9100142182404
1031444414411
1112376608a53
1261168070b7
132c716c4797
1417441dc9ab
15c408437e1
hex7523bafcb

31444414411 has 8 divisors (see below), whose sum is σ = 31628280944. Its totient is φ = 31260764160.

The previous prime is 31444414409. The next prime is 31444414447. The reversal of 31444414411 is 11441444413.

It is a happy number.

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 31444414411 - 21 = 31444414409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31444814411) 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, 242275 + ... + 348691.

It is an arithmetic number, because the mean of its divisors is an integer number (3953535118).

Almost surely, 231444414411 is an apocalyptic number.

31444414411 is a deficient number, since it is larger than the sum of its proper divisors (183866533).

31444414411 is a wasteful number, since it uses less digits than its factorization.

31444414411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108141.

The product of its digits is 12288, while the sum is 31.

Adding to 31444414411 its reverse (11441444413), we get a palindrome (42885858824).

The spelling of 31444414411 in words is "thirty-one billion, four hundred forty-four million, four hundred fourteen thousand, four hundred eleven".

Divisors: 1 193 1531 106417 295483 20538481 162924427 31444414411