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54748789 = 173787041
BaseRepresentation
bin1101000011011…
…0011001110101
310211000112012221
43100312121311
5103003430124
65233242341
71233233314
oct320663165
9124015187
1054748789
11289a4637
12164033b1
13b45ba44
1473b227b
154c16ce4
hex3436675

54748789 has 8 divisors (see below), whose sum is σ = 59536728. Its totient is φ = 50135040.

The previous prime is 54748787. The next prime is 54748807. The reversal of 54748789 is 98784745.

It can be written as a sum of positive squares in 4 ways, for example, as 45495025 + 9253764 = 6745^2 + 3042^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54748789 - 21 = 54748787 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 (54748787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42892 + ... + 44149.

It is an arithmetic number, because the mean of its divisors is an integer number (7442091).

Almost surely, 254748789 is an apocalyptic number.

It is an amenable number.

54748789 is a deficient number, since it is larger than the sum of its proper divisors (4787939).

54748789 is a wasteful number, since it uses less digits than its factorization.

54748789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87095.

The product of its digits is 2257920, while the sum is 52.

The square root of 54748789 is about 7399.2424612253. The cubic root of 54748789 is about 379.7153662613.

The spelling of 54748789 in words is "fifty-four million, seven hundred forty-eight thousand, seven hundred eighty-nine".

Divisors: 1 17 37 629 87041 1479697 3220517 54748789