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47465631431 = 3113782113613
BaseRepresentation
bin101100001101001011…
…000000111011000111
311112111221221220112022
4230031023000323013
51234202200201211
633445545113355
73300146132051
oct541513007307
9145457856468
1047465631431
1119148125479
12924818885b
13462599905a
142423cd48d1
15137c12abdb
hexb0d2c0ec7

47465631431 has 16 divisors (see below), whose sum is σ = 49418166528. Its totient is φ = 45540307200.

The previous prime is 47465631373. The next prime is 47465631449. The reversal of 47465631431 is 13413656474.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-47465631431 is a prime.

It is a super-2 number, since 2×474656314312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47465631131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3479981 + ... + 3493593.

It is an arithmetic number, because the mean of its divisors is an integer number (3088635408).

Almost surely, 247465631431 is an apocalyptic number.

47465631431 is a deficient number, since it is larger than the sum of its proper divisors (1952535097).

47465631431 is a wasteful number, since it uses less digits than its factorization.

47465631431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14602.

The product of its digits is 725760, while the sum is 44.

The spelling of 47465631431 in words is "forty-seven billion, four hundred sixty-five million, six hundred thirty-one thousand, four hundred thirty-one".

Divisors: 1 31 137 821 4247 13613 25451 112477 422003 1864981 3486787 11176273 57814411 346464463 1531149401 47465631431