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137680195 = 51743139271
BaseRepresentation
bin10000011010011…
…01010101000011
3100121001212201111
420031031111003
5240221231240
621354544151
73261155662
oct1015152503
9317055644
10137680195
1170798194
123a138057
13226a7493
14143dcdd9
15c1491ea
hex834d543

137680195 has 32 divisors (see below), whose sum is σ = 180956160. Its totient is φ = 100154880.

The previous prime is 137680187. The next prime is 137680199. The reversal of 137680195 is 591086731.

It is not a de Polignac number, because 137680195 - 23 = 137680187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137680199) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 507910 + ... + 508180.

It is an arithmetic number, because the mean of its divisors is an integer number (5654880).

Almost surely, 2137680195 is an apocalyptic number.

137680195 is a deficient number, since it is larger than the sum of its proper divisors (43275965).

137680195 is a wasteful number, since it uses less digits than its factorization.

137680195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 137680195 is about 11733.7204244860. The cubic root of 137680195 is about 516.3654280528.

The spelling of 137680195 in words is "one hundred thirty-seven million, six hundred eighty thousand, one hundred ninety-five".

Divisors: 1 5 17 43 85 139 215 271 695 731 1355 2363 3655 4607 5977 11653 11815 23035 29885 37669 58265 101609 188345 198101 508045 640373 990505 1619767 3201865 8098835 27536039 137680195