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71750054 = 2124928723
BaseRepresentation
bin1000100011011…
…01000110100110
312000000021120102
410101231012212
5121332000204
611041504102
71530602555
oct421550646
9160007512
1071750054
1137556972
1220042032
1311b3226c
149759d9c
15647441e
hex446d1a6

71750054 has 8 divisors (see below), whose sum is σ = 107715000. Its totient is φ = 35845056.

The previous prime is 71750033. The next prime is 71750057. The reversal of 71750054 is 45005717.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71749999 and 71750026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71750057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11864 + ... + 16859.

It is an arithmetic number, because the mean of its divisors is an integer number (13464375).

Almost surely, 271750054 is an apocalyptic number.

71750054 is a deficient number, since it is larger than the sum of its proper divisors (35964946).

71750054 is a wasteful number, since it uses less digits than its factorization.

71750054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29974.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 71750054 is about 8470.5403605673. The cubic root of 71750054 is about 415.5348096008.

The spelling of 71750054 in words is "seventy-one million, seven hundred fifty thousand, fifty-four".

Divisors: 1 2 1249 2498 28723 57446 35875027 71750054