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55445706 = 2326150497
BaseRepresentation
bin1101001110000…
…0100011001010
310212022221012200
43103200203022
5103143230311
65300221030
71242165201
oct323404312
9125287180
1055445706
11293301a8
121669a776
13b644014
147514238
154d03556
hex34e08ca

55445706 has 24 divisors (see below), whose sum is σ = 122104164. Its totient is φ = 18178560.

The previous prime is 55445693. The next prime is 55445707. The reversal of 55445706 is 60754455.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 41718681 + 13727025 = 6459^2 + 3705^2 .

It is not an unprimeable number, because it can be changed into a prime (55445707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24151 + ... + 26346.

Almost surely, 255445706 is an apocalyptic number.

55445706 is an abundant number, since it is smaller than the sum of its proper divisors (66658458).

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

55445706 is a wasteful number, since it uses less digits than its factorization.

55445706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50566 (or 50563 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 55445706 is about 7446.1873465553. The cubic root of 55445706 is about 381.3197555424.

The spelling of 55445706 in words is "fifty-five million, four hundred forty-five thousand, seven hundred six".

Divisors: 1 2 3 6 9 18 61 122 183 366 549 1098 50497 100994 151491 302982 454473 908946 3080317 6160634 9240951 18481902 27722853 55445706