Search a number
-
+
71455205074 = 21127031120157
BaseRepresentation
bin100001010001100001…
…1111110011011010010
320211102211120111221211
41002203003332123102
52132320013030244
652454233010334
75106504136021
oct1024303763322
9224384514854
1071455205074
11283386671a0
1211a222539aa
136979a84746
14365bdb88b8
151cd325c934
hex10a30fe6d2

71455205074 has 16 divisors (see below), whose sum is σ = 116931998016. Its totient is φ = 32478166800.

The previous prime is 71455205057. The next prime is 71455205099. The reversal of 71455205074 is 47050255417.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534604 + ... + 654760.

It is an arithmetic number, because the mean of its divisors is an integer number (7308249876).

Almost surely, 271455205074 is an apocalyptic number.

71455205074 is a deficient number, since it is larger than the sum of its proper divisors (45476792942).

71455205074 is a wasteful number, since it uses less digits than its factorization.

71455205074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147201.

The product of its (nonzero) digits is 196000, while the sum is 40.

The spelling of 71455205074 in words is "seventy-one billion, four hundred fifty-five million, two hundred five thousand, seventy-four".

Divisors: 1 2 11 22 27031 54062 120157 240314 297341 594682 1321727 2643454 3247963867 6495927734 35727602537 71455205074