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75152838 = 23106911717
BaseRepresentation
bin1000111101010…
…11110111000110
312020102011022110
410132223313012
5123214342323
611242441450
71601534325
oct436536706
9166364273
1075152838
1139470492
1221203286
1312754047
149da40bc
1568e7793
hex47abdc6

75152838 has 16 divisors (see below), whose sum is σ = 150459120. Its totient is φ = 25025376.

The previous prime is 75152837. The next prime is 75152873. The reversal of 75152838 is 83825157.

It is a junction number, because it is equal to n+sod(n) for n = 75152796 and 75152805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75152837) 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, 556 + ... + 12272.

It is an arithmetic number, because the mean of its divisors is an integer number (9403695).

Almost surely, 275152838 is an apocalyptic number.

75152838 is an abundant number, since it is smaller than the sum of its proper divisors (75306282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75152838 is a wasteful number, since it uses less digits than its factorization.

75152838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12791.

The product of its digits is 67200, while the sum is 39.

The square root of 75152838 is about 8669.0736529343. The cubic root of 75152838 is about 422.0026017524.

The spelling of 75152838 in words is "seventy-five million, one hundred fifty-two thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 1069 2138 3207 6414 11717 23434 35151 70302 12525473 25050946 37576419 75152838