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67872045 = 354524803
BaseRepresentation
bin1000000101110…
…10010100101101
311201201020221110
410002322110231
5114333401140
610422422233
71452621453
oct402722455
9151636843
1067872045
11353482aa
121a891979
13110a5097
14902a9d3
155e5a380
hex40ba52d

67872045 has 8 divisors (see below), whose sum is σ = 108595296. Its totient is φ = 36198416.

The previous prime is 67872031. The next prime is 67872053. The reversal of 67872045 is 54027876.

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

It is a cyclic number.

It is not a de Polignac number, because 67872045 - 24 = 67872029 is a prime.

It is a super-2 number, since 2×678720452 = 9213228984964050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67871994 and 67872012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2262387 + ... + 2262416.

It is an arithmetic number, because the mean of its divisors is an integer number (13574412).

Almost surely, 267872045 is an apocalyptic number.

It is an amenable number.

67872045 is a deficient number, since it is larger than the sum of its proper divisors (40723251).

67872045 is a wasteful number, since it uses less digits than its factorization.

67872045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4524811.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 67872045 is about 8238.4491865885. The cubic root of 67872045 is about 407.9093356310.

The spelling of 67872045 in words is "sixty-seven million, eight hundred seventy-two thousand, forty-five".

Divisors: 1 3 5 15 4524803 13574409 22624015 67872045