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75470242 = 21719116827
BaseRepresentation
bin1000111111110…
…01010110100010
312021000021201011
410133321112202
5123310021432
611253331134
71604325601
oct437712642
9167007634
1075470242
1139667a01
1221336aaa
1312835663
14a047a38
15695b847
hex47f95a2

75470242 has 16 divisors (see below), whose sum is σ = 126174240. Its totient is φ = 33645888.

The previous prime is 75470233. The next prime is 75470281. The reversal of 75470242 is 24207457.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57768 + ... + 59059.

It is an arithmetic number, because the mean of its divisors is an integer number (7885890).

Almost surely, 275470242 is an apocalyptic number.

75470242 is a deficient number, since it is larger than the sum of its proper divisors (50703998).

75470242 is a wasteful number, since it uses less digits than its factorization.

75470242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116865.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 75470242 is about 8687.3610492485. The cubic root of 75470242 is about 422.5958691449.

Adding to 75470242 its reverse (24207457), we get a palindrome (99677699).

The spelling of 75470242 in words is "seventy-five million, four hundred seventy thousand, two hundred forty-two".

Divisors: 1 2 17 19 34 38 323 646 116827 233654 1986059 2219713 3972118 4439426 37735121 75470242