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39971613470 = 2519210376913
BaseRepresentation
bin100101001110011111…
…100110101100011110
310211011200122100111112
4211032133212230132
51123330213112340
630210202222022
72613351052145
oct451637465436
9124150570445
1039971613470
1115a51a2a8a8
1278b64b4912
133a00223ab9
141d128dc75c
15108e27b065
hex94e7e6b1e

39971613470 has 16 divisors (see below), whose sum is σ = 75735689040. Its totient is φ = 15147137664.

The previous prime is 39971613469. The next prime is 39971613491. The reversal of 39971613470 is 7431617993.

It is a Curzon number.

It is a congruent number.

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, 105188267 + ... + 105188646.

It is an arithmetic number, because the mean of its divisors is an integer number (4733480565).

Almost surely, 239971613470 is an apocalyptic number.

39971613470 is a deficient number, since it is larger than the sum of its proper divisors (35764075570).

39971613470 is a wasteful number, since it uses less digits than its factorization.

39971613470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210376939.

The product of its (nonzero) digits is 857304, while the sum is 50.

The spelling of 39971613470 in words is "thirty-nine billion, nine hundred seventy-one million, six hundred thirteen thousand, four hundred seventy".

Divisors: 1 2 5 10 19 38 95 190 210376913 420753826 1051884565 2103769130 3997161347 7994322694 19985806735 39971613470