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42990950 = 2525316223
BaseRepresentation
bin1010001111111…
…1110101100110
32222220011111102
42203333311212
542001202300
64133240102
71031263022
oct243776546
988804442
1042990950
11222a3812
1212493032
138ba3042
1459d1382
153b930d5
hex28ffd66

42990950 has 24 divisors (see below), whose sum is σ = 81476928. Its totient is φ = 16870880.

The previous prime is 42990949. The next prime is 42990971. The reversal of 42990950 is 5909924.

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, 5462 + ... + 10761.

It is an arithmetic number, because the mean of its divisors is an integer number (3394872).

Almost surely, 242990950 is an apocalyptic number.

42990950 is a deficient number, since it is larger than the sum of its proper divisors (38485978).

42990950 is a wasteful number, since it uses less digits than its factorization.

42990950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16288 (or 16283 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 42990950 is about 6556.7484319592. The cubic root of 42990950 is about 350.3152262115.

The spelling of 42990950 in words is "forty-two million, nine hundred ninety thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 50 53 106 265 530 1325 2650 16223 32446 81115 162230 405575 811150 859819 1719638 4299095 8598190 21495475 42990950