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55782050542 = 297287536343
BaseRepresentation
bin110011111100110111…
…101000101011101110
312022222112202202211221
4303330313220223232
51403220201104132
641343110533554
74013221414651
oct637467505356
9168875682757
1055782050542
1121725571219
12a9893672ba
13534c9384ca
1429b2607898
1516b72c9e97
hexcfcde8aee

55782050542 has 8 divisors (see below), whose sum is σ = 84535685136. Its totient is φ = 27603488832.

The previous prime is 55782050531. The next prime is 55782050561. The reversal of 55782050542 is 24505028755.

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

It is a super-2 number, since 2×557820505422 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143767978 + ... + 143768365.

It is an arithmetic number, because the mean of its divisors is an integer number (10566960642).

Almost surely, 255782050542 is an apocalyptic number.

55782050542 is a deficient number, since it is larger than the sum of its proper divisors (28753634594).

55782050542 is a wasteful number, since it uses less digits than its factorization.

55782050542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287536442.

The product of its (nonzero) digits is 560000, while the sum is 43.

The spelling of 55782050542 in words is "fifty-five billion, seven hundred eighty-two million, fifty thousand, five hundred forty-two".

Divisors: 1 2 97 194 287536343 575072686 27891025271 55782050542