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47112030 = 2345721187
BaseRepresentation
bin1011001110110…
…1111101011110
310021122112120000
42303231331132
544030041110
64401435130
71111305600
oct263557536
9107575500
1047112030
1124658a69
121393baa6
1399b6a54
146385170
1542091c0
hex2cedf5e

47112030 has 120 divisors (see below), whose sum is σ = 147485448. Its totient is φ = 10759392.

The previous prime is 47112029. The next prime is 47112059. The reversal of 47112030 is 3021174.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 47111994 and 47112012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 39097 + ... + 40283.

Almost surely, 247112030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47112030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73742724).

47112030 is an abundant number, since it is smaller than the sum of its proper divisors (100373418).

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

47112030 is a wasteful number, since it uses less digits than its factorization.

47112030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220 (or 1204 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 47112030 is about 6863.8203647823. The cubic root of 47112030 is about 361.1691158017.

The spelling of 47112030 in words is "forty-seven million, one hundred twelve thousand, thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 49 54 63 70 81 90 98 105 126 135 147 162 189 210 245 270 294 315 378 405 441 490 567 630 735 810 882 945 1134 1187 1323 1470 1890 2205 2374 2646 2835 3561 3969 4410 5670 5935 6615 7122 7938 8309 10683 11870 13230 16618 17805 19845 21366 24927 32049 35610 39690 41545 49854 53415 58163 64098 74781 83090 96147 106830 116326 124635 149562 160245 174489 192294 224343 249270 290815 320490 348978 373905 448686 480735 523467 581630 673029 747810 872445 961470 1046934 1121715 1346058 1570401 1744890 2243430 2617335 3140802 3365145 4711203 5234670 6730290 7852005 9422406 15704010 23556015 47112030