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47084490 = 234558129
BaseRepresentation
bin1011001110011…
…1001111001010
310021121010210000
42303213033022
544023200430
64401103430
71111132365
oct263471712
9107533700
1047084490
112463a302
1213927b76
1399a735b
1463790dc
154200e60
hex2ce73ca

47084490 has 40 divisors (see below), whose sum is σ = 126607140. Its totient is φ = 12555648.

The previous prime is 47084399. The next prime is 47084539. The reversal of 47084490 is 9448074.

It can be written as a sum of positive squares in 2 ways, for example, as 44715969 + 2368521 = 6687^2 + 1539^2 .

It is a super-3 number, since 3×470844903 (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28255 + ... + 29874.

Almost surely, 247084490 is an apocalyptic number.

47084490 is an abundant number, since it is smaller than the sum of its proper divisors (79522650).

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

47084490 is a wasteful number, since it uses less digits than its factorization.

47084490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58148 (or 58139 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 47084490 is about 6861.8139001287. The cubic root of 47084490 is about 361.0987265882.

It can be divided in two parts, 47084 and 490, that added together give a palindrome (47574).

The spelling of 47084490 in words is "forty-seven million, eighty-four thousand, four hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 810 58129 116258 174387 290645 348774 523161 581290 871935 1046322 1569483 1743870 2615805 3138966 4708449 5231610 7847415 9416898 15694830 23542245 47084490