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45142761 = 397115497
BaseRepresentation
bin1010110000110…
…1001011101001
310010221111020010
42230031023221
543024032021
64251322133
71055464356
oct254151351
9103844203
1045142761
1123533474
1213150349
1394775c1
145dd162d
153e6a976
hex2b0d2e9

45142761 has 8 divisors (see below), whose sum is σ = 60256224. Its totient is φ = 30062240.

The previous prime is 45142751. The next prime is 45142777. The reversal of 45142761 is 16724154.

45142761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45142761 - 29 = 45142249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45142711) 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 7 ways as a sum of consecutive naturals, for example, 4836 + ... + 10661.

It is an arithmetic number, because the mean of its divisors is an integer number (7532028).

Almost surely, 245142761 is an apocalyptic number.

It is an amenable number.

45142761 is a deficient number, since it is larger than the sum of its proper divisors (15113463).

45142761 is a wasteful number, since it uses less digits than its factorization.

45142761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16471.

The product of its digits is 6720, while the sum is 30.

The square root of 45142761 is about 6718.8362831669. The cubic root of 45142761 is about 356.0650709022.

The spelling of 45142761 in words is "forty-five million, one hundred forty-two thousand, seven hundred sixty-one".

Divisors: 1 3 971 2913 15497 46491 15047587 45142761