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30047446143 = 32111337630997
BaseRepresentation
bin11011111110111101…
…111010010001111111
32212120001120102020200
4123332331322101333
5443014121234033
621445325014543
72112414035541
oct337675722177
985501512220
1030047446143
111181a000020
1259a69b4453
132aab167c40
141650879691
15bacd9c013
hex6fef7a47f

30047446143 has 48 divisors (see below), whose sum is σ = 52367786016. Its totient is φ = 16355416320.

The previous prime is 30047446141. The next prime is 30047446171. The reversal of 30047446143 is 34164474003.

30047446143 is a `hidden beast` number, since 3 + 0 + 0 + 474 + 46 + 143 = 666.

It is not a de Polignac number, because 30047446143 - 21 = 30047446141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30047446098 and 30047446107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30047446141) 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, 267880 + ... + 363117.

It is an arithmetic number, because the mean of its divisors is an integer number (1090995542).

Almost surely, 230047446143 is an apocalyptic number.

30047446143 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

30047446143 is a deficient number, since it is larger than the sum of its proper divisors (22320339873).

30047446143 is a wasteful number, since it uses less digits than its factorization.

30047446143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631064 (or 631061 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The spelling of 30047446143 in words is "thirty billion, forty-seven million, four hundred forty-six thousand, one hundred forty-three".

Divisors: 1 3 9 11 13 33 37 39 99 111 117 143 333 407 429 481 1221 1287 1443 3663 4329 5291 15873 47619 630997 1892991 5678973 6940967 8202961 20822901 23346889 24608883 62468703 70040667 73826649 90232571 210122001 256815779 270697713 303509557 770447337 812093139 910528671 2311342011 2731586013 3338605127 10015815381 30047446143