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30310211312 = 2431263323209
BaseRepresentation
bin11100001110101000…
…010001111011110000
32220020101000021021222
4130032220101323300
5444033403230222
621531353004212
72122054355003
oct341650217360
986211007258
1030310211312
1111944362417
125a5a9b3668
132b207299a4
14167771953a
15bc5ea3542
hex70ea11ef0

30310211312 has 40 divisors (see below), whose sum is σ = 60646058880. Its totient is φ = 14660029440.

The previous prime is 30310211293. The next prime is 30310211357. The reversal of 30310211312 is 21311201303.

It is a super-2 number, since 2×303102113122 (a number of 22 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1294364 + ... + 1317572.

It is an arithmetic number, because the mean of its divisors is an integer number (1516151472).

Almost surely, 230310211312 is an apocalyptic number.

It is an amenable number.

30310211312 is an abundant number, since it is smaller than the sum of its proper divisors (30335847568).

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

30310211312 is a wasteful number, since it uses less digits than its factorization.

30310211312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25881 (or 25875 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30310211312 its reverse (21311201303), we get a palindrome (51621412615).

The spelling of 30310211312 in words is "thirty billion, three hundred ten million, two hundred eleven thousand, three hundred twelve".

Divisors: 1 2 4 8 16 31 62 124 248 496 2633 5266 10532 21064 23209 42128 46418 81623 92836 163246 185672 326492 371344 652984 719479 1305968 1438958 2877916 5755832 11511664 61109297 122218594 244437188 488874376 977748752 1894388207 3788776414 7577552828 15155105656 30310211312