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75142214 = 279755333
BaseRepresentation
bin1000111101010…
…01010001000110
312020101121201222
410132221101012
5123214022324
611242320342
71601461340
oct436512106
9166347658
1075142214
1139463504
12211b90b2
131274c264
149da0290
1568e455e
hex47a9446

75142214 has 16 divisors (see below), whose sum is σ = 130145568. Its totient is φ = 31871232.

The previous prime is 75142213. The next prime is 75142253. The reversal of 75142214 is 41224157.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75142213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26309 + ... + 29024.

It is an arithmetic number, because the mean of its divisors is an integer number (8134098).

Almost surely, 275142214 is an apocalyptic number.

75142214 is a deficient number, since it is larger than the sum of its proper divisors (55003354).

75142214 is a wasteful number, since it uses less digits than its factorization.

75142214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55439.

The product of its digits is 2240, while the sum is 26.

The square root of 75142214 is about 8668.4608783797. The cubic root of 75142214 is about 421.9827153137.

The spelling of 75142214 in words is "seventy-five million, one hundred forty-two thousand, two hundred fourteen".

Divisors: 1 2 7 14 97 194 679 1358 55333 110666 387331 774662 5367301 10734602 37571107 75142214