Search a number
-
+
48920689 = 97504337
BaseRepresentation
bin1011101010011…
…1100001110001
310102001102120101
42322213201301
5100010430224
64504312401
71132550626
oct272474161
9112042511
1048920689
1125683924
1214472701
13a19b06c
1466d634d
154465044
hex2ea7871

48920689 has 4 divisors (see below), whose sum is σ = 49425124. Its totient is φ = 48416256.

The previous prime is 48920681. The next prime is 48920717. The reversal of 48920689 is 98602984.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29073664 + 19847025 = 5392^2 + 4455^2 .

It is a cyclic number.

It is not a de Polignac number, because 48920689 - 23 = 48920681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48920681) 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, 252072 + ... + 252265.

It is an arithmetic number, because the mean of its divisors is an integer number (12356281).

Almost surely, 248920689 is an apocalyptic number.

It is an amenable number.

48920689 is a deficient number, since it is larger than the sum of its proper divisors (504435).

48920689 is an equidigital number, since it uses as much as digits as its factorization.

48920689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504434.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 48920689 is about 6994.3326343548. The cubic root of 48920689 is about 365.7330336415.

The spelling of 48920689 in words is "forty-eight million, nine hundred twenty thousand, six hundred eighty-nine".

Divisors: 1 97 504337 48920689