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30212400112 = 2431194931253
BaseRepresentation
bin11100001000110011…
…001010001111110000
32212222112221221112221
4130020303022033300
5443333333300422
621513540330424
72116456110106
oct341063121760
985875857487
1030212400112
11118a4126414
125a320a3a14
132b063a153b
141668737c76
15bbc5d23c7
hex708cca3f0

30212400112 has 40 divisors (see below), whose sum is σ = 60457737600. Its totient is φ = 14610935040.

The previous prime is 30212400103. The next prime is 30212400121. The reversal of 30212400112 is 21100421203.

It is an interprime number because it is at equal distance from previous prime (30212400103) and next prime (30212400121).

It is a super-2 number, since 2×302124001122 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 951078 + ... + 982330.

It is an arithmetic number, because the mean of its divisors is an integer number (1511443440).

Almost surely, 230212400112 is an apocalyptic number.

It is an amenable number.

30212400112 is an abundant number, since it is smaller than the sum of its proper divisors (30245337488).

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

30212400112 is a wasteful number, since it uses less digits than its factorization.

30212400112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33241 (or 33235 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 30212400112 its reverse (21100421203), we get a palindrome (51312821315).

The spelling of 30212400112 in words is "thirty billion, two hundred twelve million, four hundred thousand, one hundred twelve".

Divisors: 1 2 4 8 16 31 62 124 248 496 1949 3898 7796 15592 31184 31253 60419 62506 120838 125012 241676 250024 483352 500048 966704 968843 1937686 3875372 7750744 15501488 60912097 121824194 243648388 487296776 974593552 1888275007 3776550014 7553100028 15106200056 30212400112