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47047340 = 22513117957
BaseRepresentation
bin1011001101111…
…0001010101100
310021112020211002
42303132022230
544021003330
64400215432
71110616154
oct263361254
9107466732
1047047340
11246143aa
121390a578
139993482
146369764
1541e4e45
hex2cde2ac

47047340 has 24 divisors (see below), whose sum is σ = 99559152. Its totient is φ = 18674240.

The previous prime is 47047331. The next prime is 47047361. The reversal of 47047340 is 4374074.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6359 + ... + 11598.

It is an arithmetic number, because the mean of its divisors is an integer number (4148298).

Almost surely, 247047340 is an apocalyptic number.

It is an amenable number.

47047340 is an abundant number, since it is smaller than the sum of its proper divisors (52511812).

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

47047340 is a wasteful number, since it uses less digits than its factorization.

47047340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18097 (or 18095 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 47047340 is about 6859.1063557872. The cubic root of 47047340 is about 361.0037317724.

The spelling of 47047340 in words is "forty-seven million, forty-seven thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 131 262 524 655 1310 2620 17957 35914 71828 89785 179570 359140 2352367 4704734 9409468 11761835 23523670 47047340