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50052990 = 23513128341
BaseRepresentation
bin1011111011101…
…1111101111110
310111011221210110
42332323331332
5100303143430
64544450450
71145305041
oct276737576
9114157713
1050052990
1126287609
1214919a26
13a4a6570
14690cc58
1545da7b0
hex2fbbf7e

50052990 has 32 divisors (see below), whose sum is σ = 129368736. Its totient is φ = 12320640.

The previous prime is 50052949. The next prime is 50052997. The reversal of 50052990 is 9925005.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50052997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63781 + ... + 64560.

It is an arithmetic number, because the mean of its divisors is an integer number (4042773).

Almost surely, 250052990 is an apocalyptic number.

50052990 is an abundant number, since it is smaller than the sum of its proper divisors (79315746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50052990 is a wasteful number, since it uses less digits than its factorization.

50052990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128364.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 50052990 is about 7074.8137784680. The cubic root of 50052990 is about 368.5332484681.

Adding to 50052990 its reverse (9925005), we get a palindrome (59977995).

The spelling of 50052990 in words is "fifty million, fifty-two thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 128341 256682 385023 641705 770046 1283410 1668433 1925115 3336866 3850230 5005299 8342165 10010598 16684330 25026495 50052990