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30310400351 = 72111929102059
BaseRepresentation
bin11100001110101001…
…000000000101011111
32220020101100212121102
4130032221000011133
5444033430302401
621531401023315
72122056103100
oct341651000537
986211325542
1030310400351
1111944481450
125a5aa84b3b
132b20794a4a
1416777683a7
15bc5ede56b
hex70ea4015f

30310400351 has 48 divisors (see below), whose sum is σ = 41885424000. Its totient is φ = 21603637440.

The previous prime is 30310400347. The next prime is 30310400369. The reversal of 30310400351 is 15300401303.

It is a happy number.

It is not a de Polignac number, because 30310400351 - 22 = 30310400347 is a prime.

It is a super-3 number, since 3×303104003513 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30310400051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 245960 + ... + 348018.

It is an arithmetic number, because the mean of its divisors is an integer number (872613000).

Almost surely, 230310400351 is an apocalyptic number.

30310400351 is a deficient number, since it is larger than the sum of its proper divisors (11575023649).

30310400351 is a wasteful number, since it uses less digits than its factorization.

30310400351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102132 (or 102125 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 30310400351 its reverse (15300401303), we get a palindrome (45610801654).

The spelling of 30310400351 in words is "thirty billion, three hundred ten million, four hundred thousand, three hundred fifty-one".

Divisors: 1 7 11 19 29 49 77 133 203 209 319 539 551 931 1421 1463 2233 3857 6061 10241 15631 26999 42427 102059 296989 714413 1122649 1939121 2959711 5000891 7858543 13573847 20717977 21330331 32556821 55009801 56234509 95016929 145025839 149312317 227897747 393641563 618579599 1045186219 1595284229 2755490941 4330057193 30310400351