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51124045 = 571460687
BaseRepresentation
bin1100001100000…
…1011101001101
310120012101000011
43003001131031
5101041432140
65023433221
71160355460
oct303013515
9116171004
1051124045
1126949285
1215155811
13a78cc1b
146b0b2d7
15474ccea
hex30c174d

51124045 has 8 divisors (see below), whose sum is σ = 70113024. Its totient is φ = 35056464.

The previous prime is 51124043. The next prime is 51124057. The reversal of 51124045 is 54042115.

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 51124045 - 21 = 51124043 is a prime.

It is a super-2 number, since 2×511240452 = 5227335954324050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51124043) 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, 730309 + ... + 730378.

It is an arithmetic number, because the mean of its divisors is an integer number (8764128).

Almost surely, 251124045 is an apocalyptic number.

It is an amenable number.

51124045 is a deficient number, since it is larger than the sum of its proper divisors (18988979).

51124045 is a wasteful number, since it uses less digits than its factorization.

51124045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460699.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 51124045 is about 7150.1080411418. The cubic root of 51124045 is about 371.1433950431.

The spelling of 51124045 in words is "fifty-one million, one hundred twenty-four thousand, forty-five".

Divisors: 1 5 7 35 1460687 7303435 10224809 51124045