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45007871 = 283315887
BaseRepresentation
bin1010101110110…
…0001111111111
310010200122012012
42223230033333
543010222441
64244401435
71054363166
oct253541777
9103618165
1045007871
1123451097
12130a627b
13942b09c
145d983dd
153e409eb
hex2aec3ff

45007871 has 4 divisors (see below), whose sum is σ = 45026592. Its totient is φ = 44989152.

The previous prime is 45007841. The next prime is 45007901. The reversal of 45007871 is 17870054.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (45007841) and next prime (45007901).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-45007871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45007841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5111 + ... + 10776.

It is an arithmetic number, because the mean of its divisors is an integer number (11256648).

Almost surely, 245007871 is an apocalyptic number.

45007871 is a deficient number, since it is larger than the sum of its proper divisors (18721).

45007871 is a wasteful number, since it uses less digits than its factorization.

45007871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18720.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 45007871 is about 6708.7905765495. The cubic root of 45007871 is about 355.7100672454.

The spelling of 45007871 in words is "forty-five million, seven thousand, eight hundred seventy-one".

Divisors: 1 2833 15887 45007871