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48199189 = 291662041
BaseRepresentation
bin1011011111011…
…1011000010101
310100200202212011
42313313120111
544314333224
64441024221
71123454263
oct267673025
9110622764
1048199189
1125230845
1214185071
139ca783c
146589433
154371394
hex2df7615

48199189 has 4 divisors (see below), whose sum is σ = 49861260. Its totient is φ = 46537120.

The previous prime is 48199187. The next prime is 48199201. The reversal of 48199189 is 98199184.

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 38651089 + 9548100 = 6217^2 + 3090^2 .

It is a cyclic number.

It is not a de Polignac number, because 48199189 - 21 = 48199187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48199187) 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, 830992 + ... + 831049.

It is an arithmetic number, because the mean of its divisors is an integer number (12465315).

Almost surely, 248199189 is an apocalyptic number.

It is an amenable number.

48199189 is a deficient number, since it is larger than the sum of its proper divisors (1662071).

48199189 is a wasteful number, since it uses less digits than its factorization.

48199189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662070.

The product of its digits is 186624, while the sum is 49.

The square root of 48199189 is about 6942.5635755101. The cubic root of 48199189 is about 363.9261337253.

The spelling of 48199189 in words is "forty-eight million, one hundred ninety-nine thousand, one hundred eighty-nine".

Divisors: 1 29 1662041 48199189