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47028132 = 22328315739
BaseRepresentation
bin1011001101100…
…1011110100100
310021111021110200
42303121132210
544014400012
64355550500
71110506154
oct263313644
9107437420
1047028132
1124600a28
12138bb430
1399877c8
146362764
1541de3dc
hex2cd97a4

47028132 has 36 divisors (see below), whose sum is σ = 120316560. Its totient is φ = 15486192.

The previous prime is 47028101. The next prime is 47028143. The reversal of 47028132 is 23182074.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 47028096 and 47028105.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4882 + ... + 10857.

Almost surely, 247028132 is an apocalyptic number.

It is an amenable number.

47028132 is an abundant number, since it is smaller than the sum of its proper divisors (73288428).

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

47028132 is a wasteful number, since it uses less digits than its factorization.

47028132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15832 (or 15827 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 47028132 is about 6857.7060304449. The cubic root of 47028132 is about 360.9545961318.

The spelling of 47028132 in words is "forty-seven million, twenty-eight thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 83 166 249 332 498 747 996 1494 2988 15739 31478 47217 62956 94434 141651 188868 283302 566604 1306337 2612674 3919011 5225348 7838022 11757033 15676044 23514066 47028132