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31055000706 = 2322375012079
BaseRepresentation
bin11100111011000001…
…011011010010000010
32222011021110111021100
4130323001123102002
51002100040010311
622133320235230
72146400102442
oct347301332202
988137414240
1031055000706
1112196813744
12602830bb16
132c0bb1b882
1417085d2122
15c1b571a56
hex73b05b482

31055000706 has 24 divisors (see below), whose sum is σ = 70211306880. Its totient is φ = 9901594296.

The previous prime is 31055000701. The next prime is 31055000707. The reversal of 31055000706 is 60700055013.

It is a self number, because there is not a number n which added to its sum of digits gives 31055000706.

It is not an unprimeable number, because it can be changed into a prime (31055000701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37505626 + ... + 37506453.

It is an arithmetic number, because the mean of its divisors is an integer number (2925471120).

Almost surely, 231055000706 is an apocalyptic number.

31055000706 is an abundant number, since it is smaller than the sum of its proper divisors (39156306174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31055000706 is a wasteful number, since it uses less digits than its factorization.

31055000706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75012110 (or 75012107 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

Adding to 31055000706 its reverse (60700055013), we get a palindrome (91755055719).

The spelling of 31055000706 in words is "thirty-one billion, fifty-five million, seven hundred six", and thus it is an aban number.

Divisors: 1 2 3 6 9 18 23 46 69 138 207 414 75012079 150024158 225036237 450072474 675108711 1350217422 1725277817 3450555634 5175833451 10351666902 15527500353 31055000706