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47486142 = 2331179943
BaseRepresentation
bin1011010100100…
…1010010111110
310022100112202000
42311021102332
544124024032
64413443130
71114424364
oct265112276
9108315660
1047486142
1124894050
1213aa04a6
139ab8112
146441634
15427ee7c
hex2d494be

47486142 has 32 divisors (see below), whose sum is σ = 115119360. Its totient is φ = 14389560.

The previous prime is 47486129. The next prime is 47486143. The reversal of 47486142 is 24168474.

It is a junction number, because it is equal to n+sod(n) for n = 47486097 and 47486106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47486143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39378 + ... + 40565.

It is an arithmetic number, because the mean of its divisors is an integer number (3597480).

Almost surely, 247486142 is an apocalyptic number.

47486142 is an abundant number, since it is smaller than the sum of its proper divisors (67633218).

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

47486142 is a wasteful number, since it uses less digits than its factorization.

47486142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79965 (or 79959 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 47486142 is about 6891.0189377189. The cubic root of 47486142 is about 362.1225992159.

The spelling of 47486142 in words is "forty-seven million, four hundred eighty-six thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 99 198 297 594 79943 159886 239829 479658 719487 879373 1438974 1758746 2158461 2638119 4316922 5276238 7914357 15828714 23743071 47486142