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51055130 = 257729359
BaseRepresentation
bin1100001011000…
…0101000011010
310120001212110202
43002300220122
5101032231010
65022142202
71156650530
oct302605032
9116055422
1051055130
1126901525
1215121962
13a767749
146ad0150
1547376a5
hex30b0a1a

51055130 has 16 divisors (see below), whose sum is σ = 105027840. Its totient is φ = 17504592.

The previous prime is 51055129. The next prime is 51055133. The reversal of 51055130 is 3155015.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51055133) 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, 364610 + ... + 364749.

It is an arithmetic number, because the mean of its divisors is an integer number (6564240).

Almost surely, 251055130 is an apocalyptic number.

51055130 is an abundant number, since it is smaller than the sum of its proper divisors (53972710).

51055130 is a wasteful number, since it uses less digits than its factorization.

51055130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729373.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 51055130 is about 7145.2872580464. The cubic root of 51055130 is about 370.9765534692.

The spelling of 51055130 in words is "fifty-one million, fifty-five thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 729359 1458718 3646795 5105513 7293590 10211026 25527565 51055130