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47142080 = 265147319
BaseRepresentation
bin1011001111010…
…1010011000000
310021201001202222
42303311103000
544032021310
64402230212
71111462316
oct263652300
9107631688
1047142080
11246795a7
1213955368
1399c762b
1463920b6
154213055
hex2cf54c0

47142080 has 28 divisors (see below), whose sum is σ = 112257840. Its totient is φ = 18856704.

The previous prime is 47142079. The next prime is 47142113. The reversal of 47142080 is 8024174.

It is a congruent number.

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, 73340 + ... + 73979.

Almost surely, 247142080 is an apocalyptic number.

47142080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47142080 is an abundant number, since it is smaller than the sum of its proper divisors (65115760).

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

47142080 is a wasteful number, since it uses less digits than its factorization.

47142080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147336 (or 147326 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 47142080 is about 6866.0090299970. The cubic root of 47142080 is about 361.2458890111.

The spelling of 47142080 in words is "forty-seven million, one hundred forty-two thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 147319 294638 589276 736595 1178552 1473190 2357104 2946380 4714208 5892760 9428416 11785520 23571040 47142080