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30230112312 = 23321637256483
BaseRepresentation
bin11100001001110110…
…101110100000111000
32220000210021211010100
4130021312232200320
5443402402043222
621515412115400
72120062500141
oct341166564070
986023254110
1030230112312
11119031238a4
125a38005b60
132b09c6352a
14166ac28ac8
15bbde304ac
hex709dae838

30230112312 has 48 divisors (see below), whose sum is σ = 81923554440. Its totient is φ = 10070509248.

The previous prime is 30230112301. The next prime is 30230112329. The reversal of 30230112312 is 21321103203.

It is a super-2 number, since 2×302301123122 (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 an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 10378 + ... + 246105.

Almost surely, 230230112312 is an apocalyptic number.

It is an amenable number.

30230112312 is an abundant number, since it is smaller than the sum of its proper divisors (51693442128).

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

30230112312 is a wasteful number, since it uses less digits than its factorization.

30230112312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258132 (or 258125 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30230112312 its reverse (21321103203), we get a palindrome (51551215515).

The spelling of 30230112312 in words is "thirty billion, two hundred thirty million, one hundred twelve thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 1637 3274 4911 6548 9822 13096 14733 19644 29466 39288 58932 117864 256483 512966 769449 1025932 1538898 2051864 2308347 3077796 4616694 6155592 9233388 18466776 419862671 839725342 1259588013 1679450684 2519176026 3358901368 3778764039 5038352052 7557528078 10076704104 15115056156 30230112312