Search a number
-
+
31413331242344 = 233926666405293
BaseRepresentation
bin1110010010001111111000…
…11100110010110101101000
311010020002022001202211111102
413021013330130302311220
513104134000244223334
6150451030220420532
76421352426625062
oct711077434626550
9133202261684442
1031413331242344
11a0113565a6aa7
1236341450a7748
13146b358c341ac
147a85b0308732
153971ed4bb67e
hex1c91fc732d68

31413331242344 has 8 divisors (see below), whose sum is σ = 58899996079410. Its totient is φ = 15706665621168.

The previous prime is 31413331242331. The next prime is 31413331242347. The reversal of 31413331242344 is 44324213331413.

It can be written as a sum of positive squares in only one way, i.e., 26510038464100 + 4903292778244 = 5148790^2 + 2214338^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×314133312423442 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31413331242298 and 31413331242307.

It is not an unprimeable number, because it can be changed into a prime (31413331242347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1963333202639 + ... + 1963333202654.

Almost surely, 231413331242344 is an apocalyptic number.

It is an amenable number.

31413331242344 is a deficient number, since it is larger than the sum of its proper divisors (27486664837066).

31413331242344 is a wasteful number, since it uses less digits than its factorization.

31413331242344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3926666405299 (or 3926666405295 counting only the distinct ones).

The product of its digits is 248832, while the sum is 38.

Adding to 31413331242344 its reverse (44324213331413), we get a palindrome (75737544573757).

The spelling of 31413331242344 in words is "thirty-one trillion, four hundred thirteen billion, three hundred thirty-one million, two hundred forty-two thousand, three hundred forty-four".

Divisors: 1 2 4 8 3926666405293 7853332810586 15706665621172 31413331242344