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30002101212 = 22343151385057
BaseRepresentation
bin11011111100010000…
…111011101111011100
32212102220020122200210
4123330100323233130
5442421014214322
621441025052420
72111323436556
oct337420735734
985386218623
1030002101212
11117a6449776
125993787110
132aa194c615
1416488344d6
15ba8de170c
hex6fc43bbdc

30002101212 has 48 divisors (see below), whose sum is σ = 72107501312. Its totient is φ = 9703411200.

The previous prime is 30002101153. The next prime is 30002101219. The reversal of 30002101212 is 21210120003.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30002101219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114613 + ... + 270444.

Almost surely, 230002101212 is an apocalyptic number.

It is an amenable number.

30002101212 is an abundant number, since it is smaller than the sum of its proper divisors (42105400100).

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

30002101212 is a wasteful number, since it uses less digits than its factorization.

30002101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385258 (or 385256 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 30002101212 its reverse (21210120003), we get a palindrome (51212221215).

The spelling of 30002101212 in words is "thirty billion, two million, one hundred one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 43 86 129 151 172 258 302 453 516 604 906 1812 6493 12986 19479 25972 38958 77916 385057 770114 1155171 1540228 2310342 4620684 16557451 33114902 49672353 58143607 66229804 99344706 116287214 174430821 198689412 232574428 348861642 697723284 2500175101 5000350202 7500525303 10000700404 15001050606 30002101212