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55780341 = 318593447
BaseRepresentation
bin1101010011001…
…0001111110101
310212221221020120
43110302033311
5103234432331
65311322153
71245060621
oct324621765
9125857216
1055780341
1129539661
1216820359
13b730426
1475a0181
154d6c796
hex35323f5

55780341 has 4 divisors (see below), whose sum is σ = 74373792. Its totient is φ = 37186892.

The previous prime is 55780339. The next prime is 55780357. The reversal of 55780341 is 14308755.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55780341 - 21 = 55780339 is a prime.

It is a super-2 number, since 2×557803412 = 6222892884152562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55780301) 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, 9296721 + ... + 9296726.

It is an arithmetic number, because the mean of its divisors is an integer number (18593448).

Almost surely, 255780341 is an apocalyptic number.

It is an amenable number.

55780341 is a deficient number, since it is larger than the sum of its proper divisors (18593451).

55780341 is a wasteful number, since it uses less digits than its factorization.

55780341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18593450.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 55780341 is about 7468.6237688077. The cubic root of 55780341 is about 382.0853518517.

The spelling of 55780341 in words is "fifty-five million, seven hundred eighty thousand, three hundred forty-one".

Divisors: 1 3 18593447 55780341