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55354404145 = 571155927899
BaseRepresentation
bin110011100011011000…
…010010110100110001
312021212202002002021111
4303203120102310301
51401331211413040
641232432553321
73666506446315
oct634330226461
9167782062244
1055354404145
1121526133147
12a88a0b2841
1352b21672c1
1429718c7b45
15168e9a4dea
hexce3612d31

55354404145 has 8 divisors (see below), whose sum is σ = 67360852800. Its totient is φ = 43659811440.

The previous prime is 55354404143. The next prime is 55354404151. The reversal of 55354404145 is 54140445355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55354404145 - 21 = 55354404143 is a prime.

It is a super-2 number, since 2×553544041452 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55354404098 and 55354404107.

It is not an unprimeable number, because it can be changed into a prime (55354404143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77963595 + ... + 77964304.

It is an arithmetic number, because the mean of its divisors is an integer number (8420106600).

Almost surely, 255354404145 is an apocalyptic number.

It is an amenable number.

55354404145 is a deficient number, since it is larger than the sum of its proper divisors (12006448655).

55354404145 is a wasteful number, since it uses less digits than its factorization.

55354404145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155927975.

The product of its (nonzero) digits is 480000, while the sum is 40.

The spelling of 55354404145 in words is "fifty-five billion, three hundred fifty-four million, four hundred four thousand, one hundred forty-five".

Divisors: 1 5 71 355 155927899 779639495 11070880829 55354404145