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47520994000 = 245323760497
BaseRepresentation
bin101100010000011110…
…001101001011010000
311112122211010121200211
4230100132031023100
51234310333302000
633455243453504
73301420533004
oct542036151320
9145584117624
1047520994000
11191763a9167
129262827294
1346342b127c
14242b3c6704
151381e147ba
hexb1078d2d0

47520994000 has 40 divisors (see below), whose sum is σ = 114905768328. Its totient is φ = 19008396800.

The previous prime is 47520993967. The next prime is 47520994009. The reversal of 47520994000 is 49902574.

It can be written as a sum of positive squares in 4 ways, for example, as 953080384 + 46567913616 = 30872^2 + 215796^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47520994009) 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, 11878249 + ... + 11882248.

Almost surely, 247520994000 is an apocalyptic number.

47520994000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47520994000 is an abundant number, since it is smaller than the sum of its proper divisors (67384774328).

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

47520994000 is a wasteful number, since it uses less digits than its factorization.

47520994000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23760520 (or 23760504 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 47520994000 in words is "forty-seven billion, five hundred twenty million, nine hundred ninety-four thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 23760497 47520994 95041988 118802485 190083976 237604970 380167952 475209940 594012425 950419880 1188024850 1900839760 2376049700 2970062125 4752099400 5940124250 9504198800 11880248500 23760497000 47520994000