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47492685 = 3251955547
BaseRepresentation
bin1011010100101…
…0111001001101
310022100212201100
42311022321031
544124231220
64413533313
71114452432
oct265127115
9108325640
1047492685
1124898a59
1213aa4239
139abb0a6
146443b89
154281d90
hex2d4ae4d

47492685 has 24 divisors (see below), whose sum is σ = 86654880. Its totient is φ = 23995872.

The previous prime is 47492659. The next prime is 47492689. The reversal of 47492685 is 58629474.

It is a happy number.

It is not a de Polignac number, because 47492685 - 29 = 47492173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 47492685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47492689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26919 + ... + 28628.

It is an arithmetic number, because the mean of its divisors is an integer number (3610620).

Almost surely, 247492685 is an apocalyptic number.

47492685 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47492685 is a deficient number, since it is larger than the sum of its proper divisors (39162195).

47492685 is a wasteful number, since it uses less digits than its factorization.

47492685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55577 (or 55574 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 47492685 is about 6891.4936697352. The cubic root of 47492685 is about 362.1392304495.

The spelling of 47492685 in words is "forty-seven million, four hundred ninety-two thousand, six hundred eighty-five".

Divisors: 1 3 5 9 15 19 45 57 95 171 285 855 55547 166641 277735 499923 833205 1055393 2499615 3166179 5276965 9498537 15830895 47492685