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47109490 = 254710949
BaseRepresentation
bin1011001110110…
…1010101110010
310021122102001221
42303231111302
544030000430
64401415254
71111265311
oct263552562
9107572057
1047109490
112465706a
121393a52a
1399b584c
146384278
15420857a
hex2ced572

47109490 has 8 divisors (see below), whose sum is σ = 84797100. Its totient is φ = 18843792.

The previous prime is 47109487. The next prime is 47109511. The reversal of 47109490 is 9490174.

It can be written as a sum of positive squares in 2 ways, for example, as 46009089 + 1100401 = 6783^2 + 1049^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2355465 + ... + 2355484.

Almost surely, 247109490 is an apocalyptic number.

47109490 is a deficient number, since it is larger than the sum of its proper divisors (37687610).

47109490 is a wasteful number, since it uses less digits than its factorization.

47109490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4710956.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 47109490 is about 6863.6353341360. The cubic root of 47109490 is about 361.1626249894.

The spelling of 47109490 in words is "forty-seven million, one hundred nine thousand, four hundred ninety".

Divisors: 1 2 5 10 4710949 9421898 23554745 47109490