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71438295974 = 242898328083
BaseRepresentation
bin100001010001000001…
…1011110001110100110
320211101122202110000212
41002202003132032212
52132301200432344
652452430335422
75106210332243
oct1024203361646
9224348673025
1071438295974
112832a068131
1211a1865a572
136976414166
143659a565ca
151cd1a1c79e
hex10a20de3a6

71438295974 has 8 divisors (see below), whose sum is σ = 107182441080. Its totient is φ = 35710815616.

The previous prime is 71438295949. The next prime is 71438295997. The reversal of 71438295974 is 47959283417.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4155464 + ... + 4172619.

It is an arithmetic number, because the mean of its divisors is an integer number (13397805135).

Almost surely, 271438295974 is an apocalyptic number.

71438295974 is a deficient number, since it is larger than the sum of its proper divisors (35744145106).

71438295974 is a wasteful number, since it uses less digits than its factorization.

71438295974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8332374.

The product of its digits is 15240960, while the sum is 59.

The spelling of 71438295974 in words is "seventy-one billion, four hundred thirty-eight million, two hundred ninety-five thousand, nine hundred seventy-four".

Divisors: 1 2 4289 8578 8328083 16656166 35719147987 71438295974