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55051408 = 2415592207
BaseRepresentation
bin1101001000000…
…0010010010000
310211120220100001
43102000102100
5103043121113
65243535344
71235633506
oct322002220
9124526301
1055051408
1129090a35
121652a554
13b5366c9
147450676
154c767dd
hex3480490

55051408 has 20 divisors (see below), whose sum is σ = 106778880. Its totient is φ = 27495584.

The previous prime is 55051391. The next prime is 55051427. The reversal of 55051408 is 80415055.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23841 + ... + 26047.

It is an arithmetic number, because the mean of its divisors is an integer number (5338944).

Almost surely, 255051408 is an apocalyptic number.

It is an amenable number.

55051408 is a deficient number, since it is larger than the sum of its proper divisors (51727472).

55051408 is a wasteful number, since it uses less digits than its factorization.

55051408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3774 (or 3768 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 55051408 is about 7419.6636042344. The cubic root of 55051408 is about 380.4136953491.

The spelling of 55051408 in words is "fifty-five million, fifty-one thousand, four hundred eight".

Divisors: 1 2 4 8 16 1559 2207 3118 4414 6236 8828 12472 17656 24944 35312 3440713 6881426 13762852 27525704 55051408