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47531799380 = 22513414458893
BaseRepresentation
bin101100010001000111…
…011011001101010100
311112200120110120220002
4230101013123031110
51234321120040010
633500311230432
73301611425402
oct542107331524
9145616416802
1047531799380
111918150942a
129266378418
1346365c55a0
14242c9da472
151382d4b1a5
hexb111db354

47531799380 has 48 divisors (see below), whose sum is σ = 110116846224. Its totient is φ = 17122145280.

The previous prime is 47531799377. The next prime is 47531799433. The reversal of 47531799380 is 8399713574.

It can be written as a sum of positive squares in 8 ways, for example, as 24277379344 + 23254420036 = 155812^2 + 152494^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2218787 + ... + 2240106.

It is an arithmetic number, because the mean of its divisors is an integer number (2294100963).

Almost surely, 247531799380 is an apocalyptic number.

It is an amenable number.

47531799380 is an abundant number, since it is smaller than the sum of its proper divisors (62585046844).

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

47531799380 is a wasteful number, since it uses less digits than its factorization.

47531799380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4458956 (or 4458954 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 56.

The spelling of 47531799380 in words is "forty-seven billion, five hundred thirty-one million, seven hundred ninety-nine thousand, three hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 41 52 65 82 130 164 205 260 410 533 820 1066 2132 2665 5330 10660 4458893 8917786 17835572 22294465 44588930 57965609 89177860 115931218 182814613 231862436 289828045 365629226 579656090 731258452 914073065 1159312180 1828146130 2376589969 3656292260 4753179938 9506359876 11882949845 23765899690 47531799380