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30012402020 = 2255964139679
BaseRepresentation
bin11011111100111000…
…001110100101100100
32212110121121222202012
4123330320032211210
5442431133331040
621442033533352
72111510131226
oct337470164544
985417558665
1030012402020
1111801244937
125997114258
132aa3b18083
141649d56416
15ba9c78865
hex6fce0e964

30012402020 has 48 divisors (see below), whose sum is σ = 64195891200. Its totient is φ = 11782778880.

The previous prime is 30012402001. The next prime is 30012402047. The reversal of 30012402020 is 2020421003.

It is a junction number, because it is equal to n+sod(n) for n = 30012401986 and 30012402004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736541 + ... + 776219.

It is an arithmetic number, because the mean of its divisors is an integer number (1337414400).

Almost surely, 230012402020 is an apocalyptic number.

It is an amenable number.

30012402020 is an abundant number, since it is smaller than the sum of its proper divisors (34183489180).

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

30012402020 is a wasteful number, since it uses less digits than its factorization.

30012402020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40388 (or 40386 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 30012402020 its reverse (2020421003), we get a palindrome (32032823023).

The spelling of 30012402020 in words is "thirty billion, twelve million, four hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 59 118 236 295 590 641 1180 1282 2564 3205 6410 12820 37819 39679 75638 79358 151276 158716 189095 198395 378190 396790 756380 793580 2341061 4682122 9364244 11705305 23410610 25434239 46821220 50868478 101736956 127171195 254342390 508684780 1500620101 3001240202 6002480404 7503100505 15006201010 30012402020