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48915197 = 163729881
BaseRepresentation
bin1011101010011…
…0001011111101
310102001011000222
42322212023331
5100010241242
64504231125
71132525622
oct272461375
9112034028
1048915197
112567a791
121446b4a5
13a198706
1466d4349
1544635d2
hex2ea62fd

48915197 has 4 divisors (see below), whose sum is σ = 48946716. Its totient is φ = 48883680.

The previous prime is 48915169. The next prime is 48915211. The reversal of 48915197 is 79151984.

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 3136441 + 45778756 = 1771^2 + 6766^2 .

It is a cyclic number.

It is not a de Polignac number, because 48915197 - 26 = 48915133 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 (48915697) 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, 13304 + ... + 16577.

It is an arithmetic number, because the mean of its divisors is an integer number (12236679).

Almost surely, 248915197 is an apocalyptic number.

It is an amenable number.

48915197 is a deficient number, since it is larger than the sum of its proper divisors (31519).

48915197 is a wasteful number, since it uses less digits than its factorization.

48915197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31518.

The product of its digits is 90720, while the sum is 44.

The square root of 48915197 is about 6993.9400197600. The cubic root of 48915197 is about 365.7193469918.

The spelling of 48915197 in words is "forty-eight million, nine hundred fifteen thousand, one hundred ninety-seven".

Divisors: 1 1637 29881 48915197