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47385972 = 223548751
BaseRepresentation
bin1011010011000…
…0110101110100
310022011110100000
42310300311310
544112322342
64411351300
71113526344
oct264606564
9108143300
1047385972
1124825867
1213a52530
139a8164a
146416d24
15426044c
hex2d30d74

47385972 has 36 divisors (see below), whose sum is σ = 124220096. Its totient is φ = 15795000.

The previous prime is 47385941. The next prime is 47385977. The reversal of 47385972 is 27958374.

47385972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47385977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23404 + ... + 25347.

Almost surely, 247385972 is an apocalyptic number.

It is an amenable number.

47385972 is an abundant number, since it is smaller than the sum of its proper divisors (76834124).

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

47385972 is a wasteful number, since it uses less digits than its factorization.

47385972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48770 (or 48756 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 47385972 is about 6883.7469447969. The cubic root of 47385972 is about 361.8677925489.

The spelling of 47385972 in words is "forty-seven million, three hundred eighty-five thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 324 486 972 48751 97502 146253 195004 292506 438759 585012 877518 1316277 1755036 2632554 3948831 5265108 7897662 11846493 15795324 23692986 47385972