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38190625 = 55112101
BaseRepresentation
bin1001000110101…
…1111000100001
32122212021200121
42101223320201
534234100000
63442320241
7642420634
oct221537041
978767617
1038190625
111a615200
1210959081
137bb2105
145101c1b
153545b1a
hex246be21

38190625 has 36 divisors (see below), whose sum is σ = 52988796. Its totient is φ = 27500000.

The previous prime is 38190601. The next prime is 38190631. The reversal of 38190625 is 52609183.

It can be written as a sum of positive squares in 6 ways, for example, as 21446161 + 16744464 = 4631^2 + 4092^2 .

It is not a de Polignac number, because 38190625 - 213 = 38182433 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 378075 + ... + 378175.

It is an arithmetic number, because the mean of its divisors is an integer number (1471911).

Almost surely, 238190625 is an apocalyptic number.

It is an amenable number.

38190625 is a deficient number, since it is larger than the sum of its proper divisors (14798171).

38190625 is an equidigital number, since it uses as much as digits as its factorization.

38190625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 38190625 is about 6179.8563899172. The cubic root of 38190625 is about 336.7587756776.

The spelling of 38190625 in words is "thirty-eight million, one hundred ninety thousand, six hundred twenty-five".

Divisors: 1 5 11 25 55 101 121 125 275 505 605 625 1111 1375 2525 3025 3125 5555 6875 12221 12625 15125 27775 34375 61105 63125 75625 138875 305525 315625 378125 694375 1527625 3471875 7638125 38190625