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30406680455 = 523718941843
BaseRepresentation
bin11100010100011000…
…010001111110000111
32220111002112102002012
4130110120101332013
5444233102233310
621545120404435
72124335343104
oct342430217607
986432472065
1030406680455
1111993862088
125a8717671b
132b37705318
14168646baab
15bce6abc05
hex714611f87

30406680455 has 32 divisors (see below), whose sum is σ = 39045473280. Its totient is φ = 22681711360.

The previous prime is 30406680433. The next prime is 30406680461. The reversal of 30406680455 is 55408660403.

It is not a de Polignac number, because 30406680455 - 212 = 30406676359 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 705764 + ... + 747606.

It is an arithmetic number, because the mean of its divisors is an integer number (1220171040).

Almost surely, 230406680455 is an apocalyptic number.

30406680455 is a deficient number, since it is larger than the sum of its proper divisors (8638792825).

30406680455 is a wasteful number, since it uses less digits than its factorization.

30406680455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42031.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 30406680455 in words is "thirty billion, four hundred six million, six hundred eighty thousand, four hundred fifty-five".

Divisors: 1 5 23 71 89 115 355 445 1633 2047 6319 8165 10235 31595 41843 145337 209215 726685 962389 2970853 3724027 4811945 14854265 18620135 68329619 85652621 264405917 341648095 428263105 1322029585 6081336091 30406680455