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55051276 = 22710311907
BaseRepresentation
bin1101001000000…
…0010000001100
310211120220011011
43102000100030
5103043120101
65243535004
71235633230
oct322002014
9124526134
1055051276
1129090925
121652a464
13b536627
1474505c0
154c76751
hex348040c

55051276 has 24 divisors (see below), whose sum is σ = 110267136. Its totient is φ = 23558160.

The previous prime is 55051273. The next prime is 55051277. The reversal of 55051276 is 67215055.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (55051273) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 27915 + ... + 29821.

It is an arithmetic number, because the mean of its divisors is an integer number (4594464).

Almost surely, 255051276 is an apocalyptic number.

It is an amenable number.

55051276 is an abundant number, since it is smaller than the sum of its proper divisors (55215860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55051276 is a wasteful number, since it uses less digits than its factorization.

55051276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949 (or 2947 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 55051276 is about 7419.6547089470. The cubic root of 55051276 is about 380.4133913021.

The spelling of 55051276 in words is "fifty-five million, fifty-one thousand, two hundred seventy-six".

Divisors: 1 2 4 7 14 28 1031 1907 2062 3814 4124 7217 7628 13349 14434 26698 28868 53396 1966117 3932234 7864468 13762819 27525638 55051276