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73090530 = 23251942743
BaseRepresentation
bin1000101101101…
…00010111100010
312002112101100200
410112310113202
5122202344110
611130330030
71545154632
oct426642742
9162471320
1073090530
1138291aa7
1220589916
13121b1446
1499c86c2
15663b6c0
hex45b45e2

73090530 has 48 divisors (see below), whose sum is σ = 200041920. Its totient is φ = 18464544.

The previous prime is 73090489. The next prime is 73090541. The reversal of 73090530 is 3509037.

It is a house number.

It is a junction number, because it is equal to n+sod(n) for n = 73090494 and 73090503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19662 + ... + 23081.

It is an arithmetic number, because the mean of its divisors is an integer number (4167540).

Almost surely, 273090530 is an apocalyptic number.

73090530 is an abundant number, since it is smaller than the sum of its proper divisors (126951390).

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

73090530 is a wasteful number, since it uses less digits than its factorization.

73090530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42775 (or 42772 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 27.

The square root of 73090530 is about 8549.2999713427. The cubic root of 73090530 is about 418.1066133737.

Adding to 73090530 its reverse (3509037), we get a palindrome (76599567).

The spelling of 73090530 in words is "seventy-three million, ninety thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 19 30 38 45 57 90 95 114 171 190 285 342 570 855 1710 42743 85486 128229 213715 256458 384687 427430 641145 769374 812117 1282290 1624234 1923435 2436351 3846870 4060585 4872702 7309053 8121170 12181755 14618106 24363510 36545265 73090530