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51094045 = 531329639
BaseRepresentation
bin1100001011101…
…0001000011101
310120010211212001
43002322020131
5101040002140
65023042301
71160202142
oct302721035
9116124761
1051094045
1126928792
1215140391
13a77c382
146b003c9
154743e9a
hex30ba21d

51094045 has 8 divisors (see below), whose sum is σ = 63290880. Its totient is φ = 39556560.

The previous prime is 51094033. The next prime is 51094049. The reversal of 51094045 is 54049015.

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

It is a de Polignac number, because none of the positive numbers 2k-51094045 is a prime.

It is a super-2 number, since 2×510940452 = 5221202868924050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51094049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164665 + ... + 164974.

It is an arithmetic number, because the mean of its divisors is an integer number (7911360).

Almost surely, 251094045 is an apocalyptic number.

It is an amenable number.

51094045 is a deficient number, since it is larger than the sum of its proper divisors (12196835).

51094045 is a wasteful number, since it uses less digits than its factorization.

51094045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329675.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 51094045 is about 7148.0098628919. The cubic root of 51094045 is about 371.0707841972.

The spelling of 51094045 in words is "fifty-one million, ninety-four thousand, forty-five".

Divisors: 1 5 31 155 329639 1648195 10218809 51094045