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47898783961 = 747169985691
BaseRepresentation
bin101100100110111111…
…010111000011011001
311120122011000100002121
4230212333113003121
51241044042041321
634000541101241
73313655642320
oct544677270331
9146564010077
1047898783961
111934a684376
129349257821
134694647522
1424656490b7
1513a518c441
hexb26fd70d9

47898783961 has 16 divisors (see below), whose sum is σ = 55939737600. Its totient is φ = 40158447120.

The previous prime is 47898783923. The next prime is 47898783971. The reversal of 47898783961 is 16938789874.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-47898783961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47898783971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 516126 + ... + 601816.

It is an arithmetic number, because the mean of its divisors is an integer number (3496233600).

Almost surely, 247898783961 is an apocalyptic number.

It is an amenable number.

47898783961 is a deficient number, since it is larger than the sum of its proper divisors (8040953639).

47898783961 is a wasteful number, since it uses less digits than its factorization.

47898783961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87444.

The product of its digits is 146313216, while the sum is 70.

The spelling of 47898783961 in words is "forty-seven billion, eight hundred ninety-eight million, seven hundred eighty-three thousand, nine hundred sixty-one".

Divisors: 1 7 47 329 1699 11893 79853 85691 558971 599837 4027477 28192339 145589009 1019123063 6842683423 47898783961