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47989266 = 23131736191
BaseRepresentation
bin1011011100010…
…0001000010010
310100022002220020
42313010020102
544241124031
64432324310
71121621253
oct267041022
9110262806
1047989266
11250a8056
12140a3696
139c33120
146532b2a
15432e096
hex2dc4212

47989266 has 32 divisors (see below), whose sum is σ = 109444608. Its totient is φ = 13896960.

The previous prime is 47989237. The next prime is 47989267. The reversal of 47989266 is 66298974.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (47989267) 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, 16770 + ... + 19421.

It is an arithmetic number, because the mean of its divisors is an integer number (3420144).

Almost surely, 247989266 is an apocalyptic number.

47989266 is an abundant number, since it is smaller than the sum of its proper divisors (61455342).

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

47989266 is a wasteful number, since it uses less digits than its factorization.

47989266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36226.

The product of its digits is 1306368, while the sum is 51.

The square root of 47989266 is about 6927.4285272387. The cubic root of 47989266 is about 363.3970263073.

The spelling of 47989266 in words is "forty-seven million, nine hundred eighty-nine thousand, two hundred sixty-six".

Divisors: 1 2 3 6 13 17 26 34 39 51 78 102 221 442 663 1326 36191 72382 108573 217146 470483 615247 940966 1230494 1411449 1845741 2822898 3691482 7998211 15996422 23994633 47989266