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47042982 = 2327373357
BaseRepresentation
bin1011001101110…
…1000110100110
310021112000211200
42303131012212
544020333412
64400143330
71110600360
oct263350646
9107460750
1047042982
11246110a8
1213907b46
1399914ac
146367d30
1541e39dc
hex2cdd1a6

47042982 has 24 divisors (see below), whose sum is σ = 116487696. Its totient is φ = 13440816.

The previous prime is 47042971. The next prime is 47042987. The reversal of 47042982 is 28924074.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47042987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186553 + ... + 186804.

It is an arithmetic number, because the mean of its divisors is an integer number (4853654).

Almost surely, 247042982 is an apocalyptic number.

47042982 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

47042982 is an abundant number, since it is smaller than the sum of its proper divisors (69444714).

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

47042982 is a wasteful number, since it uses less digits than its factorization.

47042982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373372 (or 373369 counting only the distinct ones).

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

The square root of 47042982 is about 6858.7886685624. The cubic root of 47042982 is about 360.9925848238.

The spelling of 47042982 in words is "forty-seven million, forty-two thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 373357 746714 1120071 2240142 2613499 3360213 5226998 6720426 7840497 15680994 23521491 47042982