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47768442 = 2343185149
BaseRepresentation
bin1011011000111…
…0001101111010
310022212212222120
42312032031322
544212042232
64423502110
71120011411
oct266161572
9108785876
1047768442
1124a67157
1213bb7936
139b86767
1464b6478
1542d892c
hex2d8e37a

47768442 has 16 divisors (see below), whose sum is σ = 97759200. Its totient is φ = 15552432.

The previous prime is 47768437. The next prime is 47768459. The reversal of 47768442 is 24486774.

It is a super-2 number, since 2×477684422 = 4563648102214728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47768394 and 47768403.

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, 92317 + ... + 92832.

It is an arithmetic number, because the mean of its divisors is an integer number (6109950).

Almost surely, 247768442 is an apocalyptic number.

47768442 is an abundant number, since it is smaller than the sum of its proper divisors (49990758).

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

47768442 is a wasteful number, since it uses less digits than its factorization.

47768442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185197.

The product of its digits is 301056, while the sum is 42.

The square root of 47768442 is about 6911.4717680101. The cubic root of 47768442 is about 362.8387751730.

The spelling of 47768442 in words is "forty-seven million, seven hundred sixty-eight thousand, four hundred forty-two".

Divisors: 1 2 3 6 43 86 129 258 185149 370298 555447 1110894 7961407 15922814 23884221 47768442