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71625097 = 1731135911
BaseRepresentation
bin1000100010011…
…10100110001001
311222202221011101
410101032212021
5121314000342
611035101401
71526542345
oct421164611
9158687141
1071625097
1137480aa5
121bba1861
1311aba41b
149726625
15644c3b7
hex444e989

71625097 has 8 divisors (see below), whose sum is σ = 78285312. Its totient is φ = 65236800.

The previous prime is 71625089. The next prime is 71625119. The reversal of 71625097 is 79052617.

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 71625097 - 23 = 71625089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71625397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67429 + ... + 68482.

It is an arithmetic number, because the mean of its divisors is an integer number (9785664).

Almost surely, 271625097 is an apocalyptic number.

It is an amenable number.

71625097 is a deficient number, since it is larger than the sum of its proper divisors (6660215).

71625097 is a wasteful number, since it uses less digits than its factorization.

71625097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135959.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 71625097 is about 8463.1611706265. The cubic root of 71625097 is about 415.2934432073.

The spelling of 71625097 in words is "seventy-one million, six hundred twenty-five thousand, ninety-seven".

Divisors: 1 17 31 527 135911 2310487 4213241 71625097