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48905231 = 371321763
BaseRepresentation
bin1011101010001…
…1110000001111
310102000122100212
42322203300033
5100004431411
64504113035
71132454564
oct272436017
9112018325
1048905231
1125673251
121446577b
13a19400b
1466d086b
15446068b
hex2ea3c0f

48905231 has 4 divisors (see below), whose sum is σ = 50227032. Its totient is φ = 47583432.

The previous prime is 48905203. The next prime is 48905237. The reversal of 48905231 is 13250984.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-48905231 is a prime.

It is a super-2 number, since 2×489052312 = 4783443238326722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48905237) 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, 660845 + ... + 660918.

It is an arithmetic number, because the mean of its divisors is an integer number (12556758).

Almost surely, 248905231 is an apocalyptic number.

48905231 is a deficient number, since it is larger than the sum of its proper divisors (1321801).

48905231 is a wasteful number, since it uses less digits than its factorization.

48905231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321800.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 48905231 is about 6993.2275095266. The cubic root of 48905231 is about 365.6945080407.

The spelling of 48905231 in words is "forty-eight million, nine hundred five thousand, two hundred thirty-one".

Divisors: 1 37 1321763 48905231