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67927868048 = 2417158032
BaseRepresentation
bin111111010000110100…
…010000001010010000
320111100000021020012202
4333100310100022100
52103104013234143
651112225542332
74623213231425
oct772064201220
9214300236182
1067927868048
1126898568727
12111b8aa49a8
136537066281
143405741d4c
151b78750ab8
hexfd0d10290

67927868048 has 30 divisors (see below), whose sum is σ = 139360842054. Its totient is φ = 31964032768.

The previous prime is 67927868009. The next prime is 67927868051. The reversal of 67927868048 is 84086872976.

It can be written as a sum of positive squares in only one way, i.e., 63932111104 + 3995756944 = 252848^2 + 63212^2 .

It is a super-2 number, since 2×679278680482 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4290515 + ... + 4306317.

Almost surely, 267927868048 is an apocalyptic number.

67927868048 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

67927868048 is an abundant number, since it is smaller than the sum of its proper divisors (71432974006).

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

67927868048 is an frugal number, since it uses more digits than its factorization.

67927868048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31631 (or 15822 counting only the distinct ones).

The product of its (nonzero) digits is 65028096, while the sum is 65.

The spelling of 67927868048 in words is "sixty-seven billion, nine hundred twenty-seven million, eight hundred sixty-eight thousand, forty-eight".

Divisors: 1 2 4 8 16 17 34 68 136 272 15803 31606 63212 126424 252848 268651 537302 1074604 2149208 4298416 249734809 499469618 998939236 1997878472 3995756944 4245491753 8490983506 16981967012 33963934024 67927868048