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49890253 = 731613769
BaseRepresentation
bin1011111001010…
…0001111001101
310110212200120011
42332110033031
5100232442003
64541153221
71144026430
oct276241715
9113780504
1049890253
1126186316
121485b811
13a44a47a
1468a9817
1545a746d
hex2f943cd

49890253 has 16 divisors (see below), whose sum is σ = 59837440. Its totient is φ = 40694400.

The previous prime is 49890241. The next prime is 49890271. The reversal of 49890253 is 35209894.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 49890253 - 213 = 49882061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49890293) 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, 11353 + ... + 15121.

It is an arithmetic number, because the mean of its divisors is an integer number (3739840).

Almost surely, 249890253 is an apocalyptic number.

It is an amenable number.

49890253 is a deficient number, since it is larger than the sum of its proper divisors (9947187).

49890253 is a wasteful number, since it uses less digits than its factorization.

49890253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3868.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 49890253 is about 7063.3032640543. The cubic root of 49890253 is about 368.1334114779.

The spelling of 49890253 in words is "forty-nine million, eight hundred ninety thousand, two hundred fifty-three".

Divisors: 1 7 31 61 217 427 1891 3769 13237 26383 116839 229909 817873 1609363 7127179 49890253