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42102433212 = 2237501219443
BaseRepresentation
bin100111001101100000…
…000010010110111100
311000200012011012200020
4213031200002112330
51142211210330322
631201441132140
73020223530460
oct471540022674
9130605135606
1042102433212
11169457a9254
1281b002a050
133c7c812a98
1420758cc4a0
15116638005c
hex9cd8025bc

42102433212 has 24 divisors (see below), whose sum is σ = 112273155456. Its totient is φ = 12029266608.

The previous prime is 42102433171. The next prime is 42102433229. The reversal of 42102433212 is 21233420124.

It is a happy number.

It is a super-2 number, since 2×421024332122 (a number of 22 digits) contains 22 as substring.

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, 250609638 + ... + 250609805.

It is an arithmetic number, because the mean of its divisors is an integer number (4678048144).

Almost surely, 242102433212 is an apocalyptic number.

42102433212 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

42102433212 is an abundant number, since it is smaller than the sum of its proper divisors (70170722244).

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

42102433212 is a wasteful number, since it uses less digits than its factorization.

42102433212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501219457 (or 501219455 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 42102433212 its reverse (21233420124), we get a palindrome (63335853336).

The spelling of 42102433212 in words is "forty-two billion, one hundred two million, four hundred thirty-three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 501219443 1002438886 1503658329 2004877772 3007316658 3508536101 6014633316 7017072202 10525608303 14034144404 21051216606 42102433212