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31001003300 = 2252310010033
BaseRepresentation
bin11100110111110011…
…011100010100100100
32222000111212010202102
4130313303130110210
51001442224101200
622124111031232
72145143115551
oct346763342444
988014763672
1031001003300
1112169292693
12601220b518
132c00893b47
141701377a28
15c169576d5
hex737cdc524

31001003300 has 18 divisors (see below), whose sum is σ = 67272177378. Its totient is φ = 12400401280.

The previous prime is 31001003291. The next prime is 31001003333. The reversal of 31001003300 is 330010013.

It can be written as a sum of positive squares in 3 ways, for example, as 1287517924 + 29713485376 = 35882^2 + 172376^2 .

It is a super-2 number, since 2×310010033002 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 155004917 + ... + 155005116.

Almost surely, 231001003300 is an apocalyptic number.

It is an amenable number.

31001003300 is an abundant number, since it is smaller than the sum of its proper divisors (36271174078).

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

31001003300 is a wasteful number, since it uses less digits than its factorization.

31001003300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310010047 (or 310010040 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 11.

Adding to 31001003300 its reverse (330010013), we get a palindrome (31331013313).

The spelling of 31001003300 in words is "thirty-one billion, one million, three thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 310010033 620020066 1240040132 1550050165 3100100330 6200200660 7750250825 15500501650 31001003300