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47087020 = 2252354351
BaseRepresentation
bin1011001110011…
…1110110101100
310021121021020201
42303213312230
544023241040
64401123244
71111142641
oct263476654
9107537221
1047087020
11246411a2
1213929524
1399a8556
146379dc8
154201a9a
hex2ce7dac

47087020 has 12 divisors (see below), whose sum is σ = 98882784. Its totient is φ = 18834800.

The previous prime is 47087009. The next prime is 47087041. The reversal of 47087020 is 2078074.

It is a self number, because there is not a number n which added to its sum of digits gives 47087020.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1177156 + ... + 1177195.

It is an arithmetic number, because the mean of its divisors is an integer number (8240232).

Almost surely, 247087020 is an apocalyptic number.

It is an amenable number.

47087020 is an abundant number, since it is smaller than the sum of its proper divisors (51795764).

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

47087020 is a wasteful number, since it uses less digits than its factorization.

47087020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354360 (or 2354358 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 47087020 is about 6861.9982512385. The cubic root of 47087020 is about 361.1051941349.

The spelling of 47087020 in words is "forty-seven million, eighty-seven thousand, twenty".

Divisors: 1 2 4 5 10 20 2354351 4708702 9417404 11771755 23543510 47087020