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73056069 = 321072709
BaseRepresentation
bin1000101101010…
…11111101000101
312002110122002100
410112223331011
5122200243234
611125502313
71544652312
oct426537505
9162418070
1073056069
1138269119
1220571999
131219b858
1499b9d09
156631399
hex45abf45

73056069 has 18 divisors (see below), whose sum is σ = 106671110. Its totient is φ = 48180816.

The previous prime is 73056043. The next prime is 73056103. The reversal of 73056069 is 96065037.

It is a happy number.

73056069 is a `hidden beast` number, since 7 + 30 + 560 + 69 = 666.

It can be written as a sum of positive squares in only one way, i.e., 49871844 + 23184225 = 7062^2 + 4815^2 .

It is not a de Polignac number, because 73056069 - 223 = 64667461 is a prime.

It is a super-2 number, since 2×730560692 = 10674378435465522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73036069) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 102687 + ... + 103395.

Almost surely, 273056069 is an apocalyptic number.

It is an amenable number.

73056069 is a deficient number, since it is larger than the sum of its proper divisors (33615041).

73056069 is a wasteful number, since it uses less digits than its factorization.

73056069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 73056069 is about 8547.2843055558. The cubic root of 73056069 is about 418.0408928805.

The spelling of 73056069 in words is "seventy-three million, fifty-six thousand, sixty-nine".

Divisors: 1 3 9 107 321 709 963 2127 6381 11449 34347 75863 103041 227589 682767 8117341 24352023 73056069