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47742307 = 1719791871
BaseRepresentation
bin1011011000011…
…1110101100011
310022211120010121
42312013311203
544210223212
64423141111
71116542254
oct266076543
9108746117
1047742307
1124a49558
1213ba4797
139b778b2
1464aab2b
1542d0d07
hex2d87d63

47742307 has 16 divisors (see below), whose sum is σ = 53913600. Its totient is φ = 42007680.

The previous prime is 47742283. The next prime is 47742311. The reversal of 47742307 is 70324774.

It is a happy number.

It is not a de Polignac number, because 47742307 - 27 = 47742179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47742367) 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, 24582 + ... + 26452.

It is an arithmetic number, because the mean of its divisors is an integer number (3369600).

Almost surely, 247742307 is an apocalyptic number.

47742307 is a deficient number, since it is larger than the sum of its proper divisors (6171293).

47742307 is a wasteful number, since it uses less digits than its factorization.

47742307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986.

The product of its (nonzero) digits is 32928, while the sum is 34.

The square root of 47742307 is about 6909.5808121767. The cubic root of 47742307 is about 362.7725911617.

The spelling of 47742307 in words is "forty-seven million, seven hundred forty-two thousand, three hundred seven".

Divisors: 1 17 19 79 323 1343 1501 1871 25517 31807 35549 147809 604333 2512753 2808371 47742307