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18148148354 = 271296296311
BaseRepresentation
bin10000111001101101…
…101100010010000010
31201211202221110100202
4100321231230102002
5244131411221404
612200453445202
71211504500340
oct207155542202
951752843322
1018148148354
11777317a516
123625940802
131932b3172b
14c42392990
157133be21e
hex439b6c482

18148148354 has 8 divisors (see below), whose sum is σ = 31111111488. Its totient is φ = 7777777860.

The previous prime is 18148148311. The next prime is 18148148423. The reversal of 18148148354 is 45384184181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 18148148299 and 18148148308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648148142 + ... + 648148169.

It is an arithmetic number, because the mean of its divisors is an integer number (3888888936).

Almost surely, 218148148354 is an apocalyptic number.

18148148354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18148148354 is a deficient number, since it is larger than the sum of its proper divisors (12962963134).

18148148354 is a wasteful number, since it uses less digits than its factorization.

18148148354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296296320.

The product of its digits is 491520, while the sum is 47.

The spelling of 18148148354 in words is "eighteen billion, one hundred forty-eight million, one hundred forty-eight thousand, three hundred fifty-four".

Divisors: 1 2 7 14 1296296311 2592592622 9074074177 18148148354