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55038840711 = 32919912012647
BaseRepresentation
bin110011010000100100…
…100000111110000111
312021001202021210121220
4303100210200332013
51400204420400321
641141241211423
73655625266311
oct632044407607
9167052253556
1055038840711
1121383a99718
12a800490b73
13526197a58a
142941a227b1
151671e1e9c6
hexcd0920f87

55038840711 has 32 divisors (see below), whose sum is σ = 76389504000. Its totient is φ = 35206617600.

The previous prime is 55038840707. The next prime is 55038840719. The reversal of 55038840711 is 11704883055.

It is not a de Polignac number, because 55038840711 - 22 = 55038840707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55038840719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20791590 + ... + 20794236.

It is an arithmetic number, because the mean of its divisors is an integer number (2387172000).

Almost surely, 255038840711 is an apocalyptic number.

55038840711 is a deficient number, since it is larger than the sum of its proper divisors (21350663289).

55038840711 is a wasteful number, since it uses less digits than its factorization.

55038840711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4079.

The product of its (nonzero) digits is 134400, while the sum is 42.

The spelling of 55038840711 in words is "fifty-five billion, thirty-eight million, eight hundred forty thousand, seven hundred eleven".

Divisors: 1 3 29 87 199 597 1201 2647 3603 5771 7941 17313 34829 76763 104487 230289 238999 526753 716997 1580259 3179047 6930971 9537141 15275837 20792913 45827511 92192363 276577089 632630353 1897891059 18346280237 55038840711