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30313110132 = 22327311534669
BaseRepresentation
bin11100001110110011…
…010101101001110100
32220020120110112201200
4130032303111221310
5444040124011012
621531535052500
72122121120244
oct341663255164
986216415650
1030313110132
1111945a62338
125a5b971130
132b21203276
141677c71b24
15bc63773dc
hex70ecd5a74

30313110132 has 36 divisors (see below), whose sum is σ = 77674467780. Its totient is φ = 9965953152.

The previous prime is 30313110041. The next prime is 30313110133. The reversal of 30313110132 is 23101131303.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5300422416 + 25012687716 = 72804^2 + 158154^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×303131101322 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30313110133) 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, 5764707 + ... + 5769962.

It is an arithmetic number, because the mean of its divisors is an integer number (2157624105).

Almost surely, 230313110132 is an apocalyptic number.

It is an amenable number.

30313110132 is an abundant number, since it is smaller than the sum of its proper divisors (47361357648).

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

30313110132 is a wasteful number, since it uses less digits than its factorization.

30313110132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11534752 (or 11534747 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 30313110132 its reverse (23101131303), we get a palindrome (53414241435).

The spelling of 30313110132 in words is "thirty billion, three hundred thirteen million, one hundred ten thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 73 146 219 292 438 657 876 1314 2628 11534669 23069338 34604007 46138676 69208014 103812021 138416028 207624042 415248084 842030837 1684061674 2526092511 3368123348 5052185022 7578277533 10104370044 15156555066 30313110132