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253050550 = 25219266369
BaseRepresentation
bin11110001010100…
…11111010110110
3122122011022002121
433011103322312
51004240104200
641035430154
76161615464
oct1705237266
9578138077
10253050550
1111a927695
12708b535a
134057006c
1425871834
1517337e1a
hexf153eb6

253050550 has 24 divisors (see below), whose sum is σ = 495448200. Its totient is φ = 95892480.

The previous prime is 253050547. The next prime is 253050617. The reversal of 253050550 is 55050352.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132235 + ... + 134134.

It is an arithmetic number, because the mean of its divisors is an integer number (20643675).

Almost surely, 2253050550 is an apocalyptic number.

253050550 is a deficient number, since it is larger than the sum of its proper divisors (242397650).

253050550 is a wasteful number, since it uses less digits than its factorization.

253050550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266400 (or 266395 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 25.

The square root of 253050550 is about 15907.5626668575. The cubic root of 253050550 is about 632.5124745622.

The spelling of 253050550 in words is "two hundred fifty-three million, fifty thousand, five hundred fifty".

Divisors: 1 2 5 10 19 25 38 50 95 190 475 950 266369 532738 1331845 2663690 5061011 6659225 10122022 13318450 25305055 50610110 126525275 253050550