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47472069 = 3233971733
BaseRepresentation
bin1011010100010…
…1110111000101
310022022211102210
42311011313011
544123101234
64413254033
71114335351
oct265056705
9108284383
1047472069
1124884517
1213a94319
139ab18a8
14643a461
15427abe9
hex2d45dc5

47472069 has 16 divisors (see below), whose sum is σ = 66252672. Its totient is φ = 30178368.

The previous prime is 47472037. The next prime is 47472071. The reversal of 47472069 is 96027474.

It is not a de Polignac number, because 47472069 - 25 = 47472037 is a prime.

It is a super-2 number, since 2×474720692 = 4507194670281522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47472079) 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, 26527 + ... + 28259.

It is an arithmetic number, because the mean of its divisors is an integer number (4140792).

Almost surely, 247472069 is an apocalyptic number.

It is an amenable number.

47472069 is a deficient number, since it is larger than the sum of its proper divisors (18780603).

47472069 is a wasteful number, since it uses less digits than its factorization.

47472069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 47472069 is about 6889.9977503625. The cubic root of 47472069 is about 362.0868227793.

The spelling of 47472069 in words is "forty-seven million, four hundred seventy-two thousand, sixty-nine".

Divisors: 1 3 23 69 397 1191 1733 5199 9131 27393 39859 119577 688001 2064003 15824023 47472069