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190242550 = 2525964489
BaseRepresentation
bin10110101011011…
…01111011110110
3111020222022201101
423111231323312
5342200230200
630513320314
74500015001
oct1325557366
9436868641
10190242550
1198429053
125386609a
133054bc74
141b3a2538
1511a7d26a
hexb56def6

190242550 has 24 divisors (see below), whose sum is σ = 359854200. Its totient is φ = 74806080.

The previous prime is 190242541. The next prime is 190242551. The reversal of 190242550 is 55242091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190242551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29295 + ... + 35194.

It is an arithmetic number, because the mean of its divisors is an integer number (14993925).

Almost surely, 2190242550 is an apocalyptic number.

190242550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190242550 is a deficient number, since it is larger than the sum of its proper divisors (169611650).

190242550 is a wasteful number, since it uses less digits than its factorization.

190242550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64560 (or 64555 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 190242550 is about 13792.8441592008. The cubic root of 190242550 is about 575.1342345708.

The spelling of 190242550 in words is "one hundred ninety million, two hundred forty-two thousand, five hundred fifty".

Divisors: 1 2 5 10 25 50 59 118 295 590 1475 2950 64489 128978 322445 644890 1612225 3224450 3804851 7609702 19024255 38048510 95121275 190242550