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31420311302413 = 11101239464925453
BaseRepresentation
bin1110010010011100111000…
…11111100111000100001101
311010020202022111222121211201
413021032130133213010031
513104242244143134123
6150454143003345501
76422020414305325
oct711163437470415
9133222274877751
1031420311302413
11a014308671490
123635572822291
13146bbcc078157
147a8a73354285
153974ab1975ad
hex1c939c7e710d

31420311302413 has 32 divisors (see below), whose sum is σ = 34769756736000. Its totient is φ = 28155613248000.

The previous prime is 31420311302363. The next prime is 31420311302489.

31420311302413 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2k-31420311302413 is a prime.

It is a super-2 number, since 2×314203113024132 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31420311302213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1234431595 + ... + 1234457047.

It is an arithmetic number, because the mean of its divisors is an integer number (1086554898000).

Almost surely, 231420311302413 is an apocalyptic number.

It is an amenable number.

31420311302413 is a deficient number, since it is larger than the sum of its proper divisors (3349445433587).

31420311302413 is a wasteful number, since it uses less digits than its factorization.

31420311302413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30453.

The product of its (nonzero) digits is 5184, while the sum is 28.

It can be divided in two parts, 3142031 and 1302413, that added together give a palindrome (4444444).

The spelling of 31420311302413 in words is "thirty-one trillion, four hundred twenty billion, three hundred eleven million, three hundred two thousand, four hundred thirteen".

Divisors: 1 11 101 239 1111 2629 4649 24139 25453 51139 265529 279983 469549 1111111 2570753 5165039 6083267 12222221 28278283 66915937 112222211 118330997 614409967 1234444321 1301640967 6758509637 11951430697 28281108283 131465737667 311092191113 2856391936583 31420311302413