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55743513478 = 292930001891
BaseRepresentation
bin110011111010100100…
…101000001110000110
312022212212020212221021
4303322210220032012
51403130314412403
641335212541354
74012243022002
oct637244501606
9168785225837
1055743513478
112170583a804
12a97848185a
135344964803
1429ab455702
1516b3c168bd
hexcfa928386

55743513478 has 8 divisors (see below), whose sum is σ = 83705278680. Its totient is φ = 27841753920.

The previous prime is 55743513373. The next prime is 55743513479. The reversal of 55743513478 is 87431534755.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55743513479) 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 3 ways as a sum of consecutive naturals, for example, 14999088 + ... + 15002803.

It is an arithmetic number, because the mean of its divisors is an integer number (10463159835).

Almost surely, 255743513478 is an apocalyptic number.

55743513478 is a deficient number, since it is larger than the sum of its proper divisors (27961765202).

55743513478 is a wasteful number, since it uses less digits than its factorization.

55743513478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30002822.

The product of its digits is 7056000, while the sum is 52.

The spelling of 55743513478 in words is "fifty-five billion, seven hundred forty-three million, five hundred thirteen thousand, four hundred seventy-eight".

Divisors: 1 2 929 1858 30001891 60003782 27871756739 55743513478