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30312030032013 = 3293939744087
BaseRepresentation
bin1101110010001100100011…
…10010000101000010001101
310222022210122111020201202110
412321012101302011002031
512433113014142011023
6144245053201414233
76245654235036312
oct671062162050215
9128283574221673
1030312030032013
1197272947a1474
12349681163a379
1313bb5486b90a2
1476b1780c6d09
1537874368ba93
hex1b9191c8508d

30312030032013 has 32 divisors (see below), whose sum is σ = 41864814984960. Its totient is φ = 19508672909376.

The previous prime is 30312030031973. The next prime is 30312030032033. The reversal of 30312030032013 is 31023003021303.

It is not a de Polignac number, because 30312030032013 - 233 = 30303440097421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312030032033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 687528256 + ... + 687572342.

It is an arithmetic number, because the mean of its divisors is an integer number (1308275468280).

Almost surely, 230312030032013 is an apocalyptic number.

It is an amenable number.

30312030032013 is a deficient number, since it is larger than the sum of its proper divisors (11552784952947).

30312030032013 is an frugal number, since it uses more digits than its factorization.

30312030032013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53574 (or 53516 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 30312030032013 its reverse (31023003021303), we get a palindrome (61335033053316).

The spelling of 30312030032013 in words is "thirty trillion, three hundred twelve billion, thirty million, thirty-two thousand, thirteen".

Divisors: 1 3 29 87 841 2523 9397 24389 28191 44087 73167 132261 272513 817539 1278523 3835569 7902877 23708631 37077167 111231501 229183433 414285539 687550299 1075237843 1242856617 3225713529 12014280631 36042841893 348414138299 1045242414897 10104010010671 30312030032013