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30538419418 = 21323411245551
BaseRepresentation
bin11100011100001110…
…110100110011011010
32220211021102102222001
4130130032310303122
51000020313410133
622010144151214
72130525165523
oct343416646332
986737372861
1030538419418
1111a51161561
125b0330850a
132b58aac480
141699b6184a
15bdb03087d
hex71c3b4cda

30538419418 has 32 divisors (see below), whose sum is σ = 52731689472. Its totient is φ = 13153008000.

The previous prime is 30538419413. The next prime is 30538419437. The reversal of 30538419418 is 81491483503.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (30538419413) by changing a digit.

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, 598258 + ... + 647293.

It is an arithmetic number, because the mean of its divisors is an integer number (1647865296).

Almost surely, 230538419418 is an apocalyptic number.

30538419418 is a deficient number, since it is larger than the sum of its proper divisors (22193270054).

30538419418 is a wasteful number, since it uses less digits than its factorization.

30538419418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245630.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 30538419418 in words is "thirty billion, five hundred thirty-eight million, four hundred nineteen thousand, four hundred eighteen".

Divisors: 1 2 13 23 26 41 46 82 299 533 598 943 1066 1886 12259 24518 1245551 2491102 16192163 28647673 32384326 51067591 57295346 102135182 372419749 663878683 744839498 1174554593 1327757366 2349109186 15269209709 30538419418