Search a number
-
+
47389230 = 232571937107
BaseRepresentation
bin1011010011000…
…1101000101110
310022011121210200
42310301220232
544112423410
64411414330
71113542010
oct264615056
9108147720
1047389230
1124828259
1213a543a6
139a82c85
1464181b0
1542613c0
hex2d31a2e

47389230 has 192 divisors, whose sum is σ = 153653760. Its totient is φ = 9891072.

The previous prime is 47389229. The next prime is 47389271. The reversal of 47389230 is 3298374.

47389230 is a `hidden beast` number, since 47 + 389 + 230 = 666.

47389230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 442837 + ... + 442943.

It is an arithmetic number, because the mean of its divisors is an integer number (800280).

Almost surely, 247389230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47389230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76826880).

47389230 is an abundant number, since it is smaller than the sum of its proper divisors (106264530).

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

47389230 is a wasteful number, since it uses less digits than its factorization.

47389230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 47389230 is about 6883.9835851054. The cubic root of 47389230 is about 361.8760857082.

The spelling of 47389230 in words is "forty-seven million, three hundred eighty-nine thousand, two hundred thirty".