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75071043 = 34926803
BaseRepresentation
bin1000111100101…
…11111001000011
312020021000010000
410132113321003
5123204233133
611241011043
71601044005
oct436277103
9166230100
1075071043
1139414a93
1221183a83
1312725a48
149d82375
1568cd413
hex4797e43

75071043 has 10 divisors (see below), whose sum is σ = 112143284. Its totient is φ = 50047308.

The previous prime is 75071027. The next prime is 75071063. The reversal of 75071043 is 34017057.

It is not a de Polignac number, because 75071043 - 24 = 75071027 is a prime.

It is a super-2 number, since 2×750710432 = 11271322994215698, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75070998 and 75071016.

It is not an unprimeable number, because it can be changed into a prime (75071023) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 463321 + ... + 463482.

Almost surely, 275071043 is an apocalyptic number.

75071043 is a deficient number, since it is larger than the sum of its proper divisors (37072241).

75071043 is an equidigital number, since it uses as much as digits as its factorization.

75071043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926815 (or 926806 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 75071043 is about 8664.3547365052. The cubic root of 75071043 is about 421.8494461559.

The spelling of 75071043 in words is "seventy-five million, seventy-one thousand, forty-three".

Divisors: 1 3 9 27 81 926803 2780409 8341227 25023681 75071043