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73791006025 = 521144492
BaseRepresentation
bin100010010111001001…
…0010110010101001001
321001110121210111111011
41010232102112111021
52202110444143100
653522113203521
75221416126232
oct1045622262511
9231417714434
1073791006025
1129327110000
12123745605a1
136c5c983099
1438002c6089
151dbd351bba
hex112e496549

73791006025 has 45 divisors (see below), whose sum is σ = 100874972005. Its totient is φ = 53546662400.

The previous prime is 73791006017. The next prime is 73791006061. The reversal of 73791006025 is 52060019737.

The square root of 73791006025 is 271645.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 65723449 + 73725282576 = 8107^2 + 271524^2 .

It is not a de Polignac number, because 73791006025 - 23 = 73791006017 is a prime.

It is a super-2 number, since 2×737910060252 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 164345001 + ... + 164345449.

Almost surely, 273791006025 is an apocalyptic number.

73791006025 is the 271645-th square number.

73791006025 is the 135823-rd centered octagonal number.

It is an amenable number.

73791006025 is a deficient number, since it is larger than the sum of its proper divisors (27083965980).

73791006025 is an frugal number, since it uses more digits than its factorization.

73791006025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 40.

The spelling of 73791006025 in words is "seventy-three billion, seven hundred ninety-one million, six thousand, twenty-five".

Divisors: 1 5 11 25 55 121 275 449 605 1331 2245 3025 4939 6655 11225 14641 24695 33275 54329 73205 123475 201601 271645 366025 597619 1008005 1358225 2217611 2988095 5040025 6573809 11088055 14940475 24393721 32869045 55440275 121968605 164345225 268330931 609843025 1341654655 2951640241 6708273275 14758201205 73791006025