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47712582440 = 2353181374981
BaseRepresentation
bin101100011011111001…
…000011101100101000
311120011011122022121222
4230123321003230220
51240203410114230
633530250121212
73306235154615
oct543371035450
9146134568558
1047712582440
1119264566416
1292b6a20208
134664bb1a03
142448a1950c
151393b5b6e5
hexb1be43b28

47712582440 has 32 divisors (see below), whose sum is σ = 107387345160. Its totient is φ = 19078982400.

The previous prime is 47712582433. The next prime is 47712582493. The reversal of 47712582440 is 4428521774.

47712582440 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 25741635364 + 21970947076 = 160442^2 + 148226^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47712582391 and 47712582400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60251 + ... + 314730.

Almost surely, 247712582440 is an apocalyptic number.

47712582440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47712582440 is an abundant number, since it is smaller than the sum of its proper divisors (59674762720).

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

47712582440 is a wasteful number, since it uses less digits than its factorization.

47712582440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378173 (or 378169 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 44.

The spelling of 47712582440 in words is "forty-seven billion, seven hundred twelve million, five hundred eighty-two thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 3181 6362 12724 15905 25448 31810 63620 127240 374981 749962 1499924 1874905 2999848 3749810 7499620 14999240 1192814561 2385629122 4771258244 5964072805 9542516488 11928145610 23856291220 47712582440