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47455666340 = 2252372783317
BaseRepresentation
bin101100001100100101…
…000000000010100100
311112111021012121222212
4230030211000002210
51234142122310330
633444551342552
73266665336235
oct541445000244
9145437177885
1047455666340
1119142539565
129244981a58
1346238ba354
14242285d08c
15137b30d295
hexb0c9400a4

47455666340 has 12 divisors (see below), whose sum is σ = 99656899356. Its totient is φ = 18982266528.

The previous prime is 47455666339. The next prime is 47455666367. The reversal of 47455666340 is 4366655474.

It can be written as a sum of positive squares in 2 ways, for example, as 26924215396 + 20531450944 = 164086^2 + 143288^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1186391639 + ... + 1186391678.

It is an arithmetic number, because the mean of its divisors is an integer number (8304741613).

Almost surely, 247455666340 is an apocalyptic number.

It is an amenable number.

47455666340 is an abundant number, since it is smaller than the sum of its proper divisors (52201233016).

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

47455666340 is a wasteful number, since it uses less digits than its factorization.

47455666340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2372783326 (or 2372783324 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 50.

The spelling of 47455666340 in words is "forty-seven billion, four hundred fifty-five million, six hundred sixty-six thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 2372783317 4745566634 9491133268 11863916585 23727833170 47455666340