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48990169 = 83590243
BaseRepresentation
bin1011101011100…
…0011111011001
310102011221212201
42322320133121
5100020141134
64510010201
71133260324
oct272703731
9112157781
1048990169
1125721048
12144a6961
13a1c3887
1467137bb
15447a914
hex2eb87d9

48990169 has 4 divisors (see below), whose sum is σ = 49580496. Its totient is φ = 48399844.

The previous prime is 48990167. The next prime is 48990181. The reversal of 48990169 is 96109984.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 48990169 - 21 = 48990167 is a prime.

It is a super-2 number, since 2×489901692 = 4800073317297122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48990167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295039 + ... + 295204.

It is an arithmetic number, because the mean of its divisors is an integer number (12395124).

Almost surely, 248990169 is an apocalyptic number.

It is an amenable number.

48990169 is a deficient number, since it is larger than the sum of its proper divisors (590327).

48990169 is an equidigital number, since it uses as much as digits as its factorization.

48990169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590326.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 48990169 is about 6999.2977504890. The cubic root of 48990169 is about 365.9060968250.

The spelling of 48990169 in words is "forty-eight million, nine hundred ninety thousand, one hundred sixty-nine".

Divisors: 1 83 590243 48990169