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47254992 = 2436116139
BaseRepresentation
bin1011010001000…
…0110111010000
310021220210122220
42310100313100
544044124432
64404501040
71112442441
oct264206720
9107823586
1047254992
1124746414
12139aa780
139a36b45
1463c12c8
15423672c
hex2d10dd0

47254992 has 40 divisors (see below), whose sum is σ = 124084320. Its totient is φ = 15492480.

The previous prime is 47254969. The next prime is 47254993. The reversal of 47254992 is 29945274.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47254993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5142 + ... + 10997.

It is an arithmetic number, because the mean of its divisors is an integer number (3102108).

Almost surely, 247254992 is an apocalyptic number.

It is an amenable number.

47254992 is an abundant number, since it is smaller than the sum of its proper divisors (76829328).

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

47254992 is a wasteful number, since it uses less digits than its factorization.

47254992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16211 (or 16205 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 47254992 is about 6874.2266474128. The cubic root of 47254992 is about 361.5340708501.

The spelling of 47254992 in words is "forty-seven million, two hundred fifty-four thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 61 122 183 244 366 488 732 976 1464 2928 16139 32278 48417 64556 96834 129112 193668 258224 387336 774672 984479 1968958 2953437 3937916 5906874 7875832 11813748 15751664 23627496 47254992