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311431241342 = 21323520788029
BaseRepresentation
bin1001000100000101011…
…11111001111001111110
31002202212011211020220002
410202002233321321332
520100302344210332
6355023004154302
731333361605514
oct4420257717176
91082764736802
10311431241342
111100938a90a1
1250435838992
13234a21b5840
14111053ca4b4
15817b033562
hex4882bf9e7e

311431241342 has 16 divisors (see below), whose sum is σ = 524954334240. Its totient is φ = 137488039392.

The previous prime is 311431241327. The next prime is 311431241347. The reversal of 311431241342 is 243142134113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311431241347) 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, 260393417 + ... + 260394612.

It is an arithmetic number, because the mean of its divisors is an integer number (32809645890).

Almost surely, 2311431241342 is an apocalyptic number.

311431241342 is a deficient number, since it is larger than the sum of its proper divisors (213523092898).

311431241342 is a wasteful number, since it uses less digits than its factorization.

311431241342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520788067.

The product of its digits is 6912, while the sum is 29.

Adding to 311431241342 its reverse (243142134113), we get a palindrome (554573375455).

The spelling of 311431241342 in words is "three hundred eleven billion, four hundred thirty-one million, two hundred forty-one thousand, three hundred forty-two".

Divisors: 1 2 13 23 26 46 299 598 520788029 1041576058 6770244377 11978124667 13540488754 23956249334 155715620671 311431241342