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74006587031 = 1322319039513
BaseRepresentation
bin100010011101100100…
…0101110011010010111
321002000122110011000212
41010323020232122113
52203031141241111
653555334000035
75226644416256
oct1047310563227
9232018404025
1074006587031
1129427875223
12124147a601b
136c95534300
143820ba279d
151dd223798b
hex113b22e697

74006587031 has 12 divisors (see below), whose sum is σ = 83621545488. Its totient is φ = 65343605184.

The previous prime is 74006587009. The next prime is 74006587099. The reversal of 74006587031 is 13078560047.

It is not a de Polignac number, because 74006587031 - 210 = 74006586007 is a prime.

It is a super-2 number, since 2×740065870312 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74006587031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74006527031) 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 11 ways as a sum of consecutive naturals, for example, 9515870 + ... + 9523643.

It is an arithmetic number, because the mean of its divisors is an integer number (6968462124).

Almost surely, 274006587031 is an apocalyptic number.

74006587031 is a deficient number, since it is larger than the sum of its proper divisors (9614958457).

74006587031 is a wasteful number, since it uses less digits than its factorization.

74006587031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19039562 (or 19039549 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 74006587031 in words is "seventy-four billion, six million, five hundred eighty-seven thousand, thirty-one".

Divisors: 1 13 23 169 299 3887 19039513 247513669 437908799 3217677697 5692814387 74006587031