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471491601852 = 22339290966821
BaseRepresentation
bin1101101110001110001…
…01101110010110111100
31200002000001122000221110
412313013011232112330
530211103322224402
61000333353202020
746031000330055
oct6670705562674
91602001560843
10471491601852
11171a5a798a77
1277465700310
13355ccac752b
1418b6ad3372c
15c3e7e4556c
hex6dc716e5bc

471491601852 has 12 divisors (see below), whose sum is σ = 1100147071016. Its totient is φ = 157163867280.

The previous prime is 471491601851. The next prime is 471491601869. The reversal of 471491601852 is 258106194174.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471491601851) by changing a digit.

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, 19645483399 + ... + 19645483422.

Almost surely, 2471491601852 is an apocalyptic number.

It is an amenable number.

471491601852 is an abundant number, since it is smaller than the sum of its proper divisors (628655469164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

471491601852 is a wasteful number, since it uses less digits than its factorization.

471491601852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39290966828 (or 39290966826 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 471491601852 in words is "four hundred seventy-one billion, four hundred ninety-one million, six hundred one thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 39290966821 78581933642 117872900463 157163867284 235745800926 471491601852