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67669254112 = 254397150647
BaseRepresentation
bin111111000001011001…
…101101111111100000
320110122222122021120211
4333001121231333200
52102041312112422
651030430543504
74613623112065
oct770131557740
9213588567524
1067669254112
11267755911a9
1211146367b94
1364c55c8b85
1433bd262c6c
151b60bb9577
hexfc166dfe0

67669254112 has 48 divisors (see below), whose sum is σ = 136465160832. Its totient is φ = 33013088640.

The previous prime is 67669254101. The next prime is 67669254119. The reversal of 67669254112 is 21145296676.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67669254119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1310773 + ... + 1361419.

It is an arithmetic number, because the mean of its divisors is an integer number (2843024184).

Almost surely, 267669254112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67669254112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68232580416).

67669254112 is an abundant number, since it is smaller than the sum of its proper divisors (68795906720).

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

67669254112 is a wasteful number, since it uses less digits than its factorization.

67669254112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51671 (or 51663 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 49.

The spelling of 67669254112 in words is "sixty-seven billion, six hundred sixty-nine million, two hundred fifty-four thousand, one hundred twelve".

Divisors: 1 2 4 8 16 32 43 86 172 344 688 971 1376 1942 3884 7768 15536 31072 41753 50647 83506 101294 167012 202588 334024 405176 668048 810352 1336096 1620704 2177821 4355642 8711284 17422568 34845136 49178237 69690272 98356474 196712948 393425896 786851792 1573703584 2114664191 4229328382 8458656764 16917313528 33834627056 67669254112