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30181714518 = 23371009134741
BaseRepresentation
bin11100000110111110…
…000110101001010110
32212220102012221211110
4130012332012221112
5443303004331033
621510522515450
72115634224534
oct340676065126
985812187743
1030181714518
111188887791a
125a23965b86
132accc19497
14166462b154
15bb9a70363
hex706f86a56

30181714518 has 32 divisors (see below), whose sum is σ = 62056775520. Its totient is φ = 9778890240.

The previous prime is 30181714499. The next prime is 30181714561. The reversal of 30181714518 is 81541718103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156628 + ... + 291368.

It is an arithmetic number, because the mean of its divisors is an integer number (1939274235).

Almost surely, 230181714518 is an apocalyptic number.

30181714518 is an abundant number, since it is smaller than the sum of its proper divisors (31875061002).

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

30181714518 is a wasteful number, since it uses less digits than its factorization.

30181714518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135792.

The product of its (nonzero) digits is 26880, while the sum is 39.

The spelling of 30181714518 in words is "thirty billion, one hundred eighty-one million, seven hundred fourteen thousand, five hundred eighteen".

Divisors: 1 2 3 6 37 74 111 222 1009 2018 3027 6054 37333 74666 111999 134741 223998 269482 404223 808446 4985417 9970834 14956251 29912502 135953669 271907338 407861007 815722014 5030285753 10060571506 15090857259 30181714518