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67714157 = 7191034943
BaseRepresentation
bin1000000100100…
…11110001101101
311201102020100202
410002103301231
5114313323112
610415203245
71451363240
oct402236155
9151366322
1067714157
113524a715
121a816525
131104b264
148dc9257
155e286c2
hex4093c6d

67714157 has 16 divisors (see below), whose sum is σ = 82268160. Its totient is φ = 54441072.

The previous prime is 67714133. The next prime is 67714177. The reversal of 67714157 is 75141776.

It is a happy number.

It is not a de Polignac number, because 67714157 - 28 = 67713901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67714157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67714117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11228 + ... + 16170.

It is an arithmetic number, because the mean of its divisors is an integer number (5141760).

Almost surely, 267714157 is an apocalyptic number.

It is an amenable number.

67714157 is a deficient number, since it is larger than the sum of its proper divisors (14554003).

67714157 is a wasteful number, since it uses less digits than its factorization.

67714157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5072.

The product of its digits is 41160, while the sum is 38.

The square root of 67714157 is about 8228.8612213356. The cubic root of 67714157 is about 407.5927890373.

The spelling of 67714157 in words is "sixty-seven million, seven hundred fourteen thousand, one hundred fifty-seven".

Divisors: 1 7 19 103 133 721 1957 4943 13699 34601 93917 509129 657419 3563903 9673451 67714157