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47642380 = 2252382119
BaseRepresentation
bin1011010110111…
…1011100001100
310022122111001121
42311233130030
544144024010
64421050324
71115645032
oct265573414
9108574047
1047642380
1124990475
1213b569a4
139b41276
146482552
1542b13da
hex2d6f70c

47642380 has 12 divisors (see below), whose sum is σ = 100049040. Its totient is φ = 19056944.

The previous prime is 47642363. The next prime is 47642383. The reversal of 47642380 is 8324674.

It is not an unprimeable number, because it can be changed into a prime (47642383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191040 + ... + 1191079.

It is an arithmetic number, because the mean of its divisors is an integer number (8337420).

Almost surely, 247642380 is an apocalyptic number.

It is an amenable number.

47642380 is an abundant number, since it is smaller than the sum of its proper divisors (52406660).

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

47642380 is a wasteful number, since it uses less digits than its factorization.

47642380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382128 (or 2382126 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 47642380 is about 6902.3459779991. The cubic root of 47642380 is about 362.5193140720.

The spelling of 47642380 in words is "forty-seven million, six hundred forty-two thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 2382119 4764238 9528476 11910595 23821190 47642380