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47925190985 = 578871543733
BaseRepresentation
bin101100101000100100…
…000110000101001001
311120200222200221201112
4230220210012011021
51241122322102420
634003323100105
73314426254610
oct545044060511
9146628627645
1047925190985
1119363580361
129356071635
134699c61c99
142468d60877
1513a76568c5
hexb28906149

47925190985 has 16 divisors (see below), whose sum is σ = 65800118016. Its totient is φ = 32825917248.

The previous prime is 47925190979. The next prime is 47925191023. The reversal of 47925190985 is 58909152974.

It is a cyclic number.

It is not a de Polignac number, because 47925190985 - 214 = 47925174601 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 740822 + ... + 802911.

It is an arithmetic number, because the mean of its divisors is an integer number (4112507376).

Almost surely, 247925190985 is an apocalyptic number.

It is an amenable number.

47925190985 is a deficient number, since it is larger than the sum of its proper divisors (17874927031).

47925190985 is a wasteful number, since it uses less digits than its factorization.

47925190985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544632.

The product of its (nonzero) digits is 8164800, while the sum is 59.

The spelling of 47925190985 in words is "forty-seven billion, nine hundred twenty-five million, one hundred ninety thousand, nine hundred eighty-five".

Divisors: 1 5 7 35 887 4435 6209 31045 1543733 7718665 10806131 54030655 1369291171 6846455855 9585038197 47925190985