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55341661 = 192831847
BaseRepresentation
bin1101001100011…
…1001001011101
310212010122111011
43103013021131
5103131413121
65254055221
71241252644
oct323071135
9125118434
1055341661
112926a011
121664a511
13b60885b
1474c835b
154cd27e1
hex34c725d

55341661 has 12 divisors (see below), whose sum is σ = 59143392. Its totient is φ = 51769224.

The previous prime is 55341659. The next prime is 55341673. The reversal of 55341661 is 16614355.

It is not a de Polignac number, because 55341661 - 21 = 55341659 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 (55341641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29040 + ... + 30886.

It is an arithmetic number, because the mean of its divisors is an integer number (4928616).

Almost surely, 255341661 is an apocalyptic number.

It is an amenable number.

55341661 is a deficient number, since it is larger than the sum of its proper divisors (3801731).

55341661 is a wasteful number, since it uses less digits than its factorization.

55341661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968 (or 1949 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 55341661 is about 7439.1976045808. The cubic root of 55341661 is about 381.0810880882.

The spelling of 55341661 in words is "fifty-five million, three hundred forty-one thousand, six hundred sixty-one".

Divisors: 1 19 83 361 1577 1847 29963 35093 153301 666767 2912719 55341661