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105052725 = 32521393359
BaseRepresentation
bin1100100001011…
…11101000110101
321022200020020200
412100233220311
5203343141400
614231351113
72413635111
oct620575065
9238606220
10105052725
1154332738
122b222499
13189c259b
14dd48741
159351b00
hex642fa35

105052725 has 36 divisors (see below), whose sum is σ = 189571200. Its totient is φ = 55608480.

The previous prime is 105052723. The next prime is 105052747. The reversal of 105052725 is 527250501.

It is a happy number.

It is not a de Polignac number, because 105052725 - 21 = 105052723 is a prime.

It is a super-2 number, since 2×1050527252 = 22072150059851250, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105052721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29596 + ... + 32954.

Almost surely, 2105052725 is an apocalyptic number.

105052725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105052725 is a deficient number, since it is larger than the sum of its proper divisors (84518475).

105052725 is a wasteful number, since it uses less digits than its factorization.

105052725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514 (or 3506 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 105052725 is about 10249.5231596402. The cubic root of 105052725 is about 471.8483500292.

The spelling of 105052725 in words is "one hundred five million, fifty-two thousand, seven hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 139 225 417 695 1251 2085 3359 3475 6255 10077 10425 16795 30231 31275 50385 83975 151155 251925 466901 755775 1400703 2334505 4202109 7003515 11672525 21010545 35017575 105052725