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47945682 = 234295961
BaseRepresentation
bin1011011011100…
…1011111010010
310100012220010000
42312321133102
544233230212
64431350430
71121350221
oct266713722
9110186100
1047945682
1125078334
1214082416
139c19335
146520cb8
1543211dc
hex2db97d2

47945682 has 20 divisors (see below), whose sum is σ = 107434206. Its totient is φ = 15981840.

The previous prime is 47945629. The next prime is 47945717. The reversal of 47945682 is 28654974.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 24413481 + 23532201 = 4941^2 + 4851^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 147819 + ... + 148142.

Almost surely, 247945682 is an apocalyptic number.

47945682 is an abundant number, since it is smaller than the sum of its proper divisors (59488524).

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

47945682 is a wasteful number, since it uses less digits than its factorization.

47945682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295975 (or 295966 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 47945682 is about 6924.2820566467. The cubic root of 47945682 is about 363.2869802176.

The spelling of 47945682 in words is "forty-seven million, nine hundred forty-five thousand, six hundred eighty-two".

Divisors: 1 2 3 6 9 18 27 54 81 162 295961 591922 887883 1775766 2663649 5327298 7990947 15981894 23972841 47945682