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73468631387 = 1997149267541
BaseRepresentation
bin100010001101100010…
…0100101100101011011
321000122011012011121202
41010123010211211123
52200430432201022
653430115424415
75210423030414
oct1043304454533
9230564164552
1073468631387
1129181144188
12122a45b510b
136c0ac50068
1437ad56a80b
151d9edc3592
hex111b12595b

73468631387 has 16 divisors (see below), whose sum is σ = 78657348000. Its totient is φ = 68421749760.

The previous prime is 73468631371. The next prime is 73468631393. The reversal of 73468631387 is 78313686437.

It is a cyclic number.

It is not a de Polignac number, because 73468631387 - 24 = 73468631371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73468631347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140837 + ... + 408377.

It is an arithmetic number, because the mean of its divisors is an integer number (4916084250).

Almost surely, 273468631387 is an apocalyptic number.

73468631387 is a deficient number, since it is larger than the sum of its proper divisors (5188716613).

73468631387 is a wasteful number, since it uses less digits than its factorization.

73468631387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267806.

The product of its digits is 12192768, while the sum is 56.

The spelling of 73468631387 in words is "seventy-three billion, four hundred sixty-eight million, six hundred thirty-one thousand, three hundred eighty-seven".

Divisors: 1 19 97 149 1843 2831 14453 267541 274607 5083279 25951477 39863609 493078063 757408571 3866770073 73468631387