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47472030 = 2325618647
BaseRepresentation
bin1011010100010…
…1110110011110
310022022211101100
42311011312132
544123101110
64413253530
71114335264
oct265056636
9108284340
1047472030
1124884491
1213a942a6
139ab1878
14643a434
15427abc0
hex2d45d9e

47472030 has 48 divisors (see below), whose sum is σ = 125465184. Its totient is φ = 12450240.

The previous prime is 47471993. The next prime is 47472031. The reversal of 47472030 is 3027474.

It is a junction number, because it is equal to n+sod(n) for n = 47471985 and 47472003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47472031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1167 + ... + 9813.

It is an arithmetic number, because the mean of its divisors is an integer number (2613858).

Almost surely, 247472030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47472030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62732592).

47472030 is an abundant number, since it is smaller than the sum of its proper divisors (77993154).

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

47472030 is a wasteful number, since it uses less digits than its factorization.

47472030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8721 (or 8718 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 47472030 is about 6889.9949201723. The cubic root of 47472030 is about 362.0867236235.

The spelling of 47472030 in words is "forty-seven million, four hundred seventy-two thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 61 90 122 183 305 366 549 610 915 1098 1830 2745 5490 8647 17294 25941 43235 51882 77823 86470 129705 155646 259410 389115 527467 778230 1054934 1582401 2637335 3164802 4747203 5274670 7912005 9494406 15824010 23736015 47472030