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48243431 = 157307283
BaseRepresentation
bin1011100000001…
…0001011100111
310100210000112202
42320002023213
544322242211
64442005115
71124030255
oct270021347
9110700482
1048243431
1125261005
12141a679b
139cc1a12
14659b5d5
15437e53b
hex2e022e7

48243431 has 4 divisors (see below), whose sum is σ = 48550872. Its totient is φ = 47935992.

The previous prime is 48243427. The next prime is 48243439. The reversal of 48243431 is 13434284.

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

It is a cyclic number.

It is not a de Polignac number, because 48243431 - 22 = 48243427 is a prime.

It is a super-2 number, since 2×482434312 = 4654857269303522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 48243394 and 48243403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48243439) 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, 153485 + ... + 153798.

It is an arithmetic number, because the mean of its divisors is an integer number (12137718).

Almost surely, 248243431 is an apocalyptic number.

48243431 is a deficient number, since it is larger than the sum of its proper divisors (307441).

48243431 is a wasteful number, since it uses less digits than its factorization.

48243431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307440.

The product of its digits is 9216, while the sum is 29.

The square root of 48243431 is about 6945.7491316632. The cubic root of 48243431 is about 364.0374488501.

The spelling of 48243431 in words is "forty-eight million, two hundred forty-three thousand, four hundred thirty-one".

Divisors: 1 157 307283 48243431