Search a number
-
+
31347403348 = 2213513579949
BaseRepresentation
bin11101001100011100…
…110110101001010100
32222220122200002021211
4131030130312221110
51003144413401343
622222323351204
72156550350332
oct351434665124
988818602254
1031347403348
1112326879118
1260aa222504
132c575895a1
141735388b52
15c3707e79d
hex74c736a54

31347403348 has 12 divisors (see below), whose sum is σ = 54862110100. Its totient is φ = 15672514752.

The previous prime is 31347403313. The next prime is 31347403349. The reversal of 31347403348 is 84330474313.

It can be written as a sum of positive squares in 2 ways, for example, as 9066467524 + 22280935824 = 95218^2 + 149268^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31347403348.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31347403349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235923 + ... + 344026.

Almost surely, 231347403348 is an apocalyptic number.

It is an amenable number.

31347403348 is a deficient number, since it is larger than the sum of its proper divisors (23514706752).

31347403348 is a wasteful number, since it uses less digits than its factorization.

31347403348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593466 (or 593464 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 40.

The spelling of 31347403348 in words is "thirty-one billion, three hundred forty-seven million, four hundred three thousand, three hundred forty-eight".

Divisors: 1 2 4 13513 27026 54052 579949 1159898 2319796 7836850837 15673701674 31347403348