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47240830 = 2571351913
BaseRepresentation
bin1011010000110…
…1011001111110
310021220002020101
42310031121332
544043201310
64404311314
71112353240
oct264153176
9107802211
1047240830
112473680a
12139a253a
139a30570
1463ba090
15423243a
hex2d0d67e

47240830 has 32 divisors (see below), whose sum is σ = 104658624. Its totient is φ = 14950656.

The previous prime is 47240813. The next prime is 47240833. The reversal of 47240830 is 3804274.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47240833) 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, 25047 + ... + 26866.

It is an arithmetic number, because the mean of its divisors is an integer number (3270582).

Almost surely, 247240830 is an apocalyptic number.

47240830 is an abundant number, since it is smaller than the sum of its proper divisors (57417794).

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

47240830 is a wasteful number, since it uses less digits than its factorization.

47240830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51940.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 47240830 is about 6873.1964907167. The cubic root of 47240830 is about 361.4979508067.

The spelling of 47240830 in words is "forty-seven million, two hundred forty thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 130 182 455 910 51913 103826 259565 363391 519130 674869 726782 1349738 1816955 3374345 3633910 4724083 6748690 9448166 23620415 47240830