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47785652461 = 173080991237
BaseRepresentation
bin101100100000001111…
…110011000011101101
311120100021010122212001
4230200033303003231
51240331111334321
633541420212301
73311113226011
oct544017630355
9146307118761
1047785652461
11192a1833a68
12931739a091
134677086a01
1424545da541
15139a291c91
hexb203f30ed

47785652461 has 8 divisors (see below), whose sum is σ = 50598770040. Its totient is φ = 44972779008.

The previous prime is 47785652459. The next prime is 47785652503. The reversal of 47785652461 is 16425658774.

47785652461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8688104100 + 39097548361 = 93210^2 + 197731^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 47785652461 - 21 = 47785652459 is a prime.

It is a super-2 number, since 2×477856524612 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47785652401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478135 + ... + 569371.

It is an arithmetic number, because the mean of its divisors is an integer number (6324846255).

Almost surely, 247785652461 is an apocalyptic number.

It is an amenable number.

47785652461 is a deficient number, since it is larger than the sum of its proper divisors (2813117579).

47785652461 is a wasteful number, since it uses less digits than its factorization.

47785652461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122063.

The product of its digits is 11289600, while the sum is 55.

The spelling of 47785652461 in words is "forty-seven billion, seven hundred eighty-five million, six hundred fifty-two thousand, four hundred sixty-one".

Divisors: 1 17 30809 91237 523753 1551029 2810920733 47785652461