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51196970 = 25112571811
BaseRepresentation
bin1100001101001…
…1010000101010
310120100002001002
43003103100222
5101101300340
65025155002
71161111206
oct303232052
9116302032
1051196970
1126999050
121518ba62
13a7b7186
146b29b06
154764715
hex30d342a

51196970 has 32 divisors (see below), whose sum is σ = 100979136. Its totient is φ = 18534400.

The previous prime is 51196967. The next prime is 51196991. The reversal of 51196970 is 7969115.

It is a super-2 number, since 2×511969702 = 5242259474361800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27365 + ... + 29175.

It is an arithmetic number, because the mean of its divisors is an integer number (3155598).

Almost surely, 251196970 is an apocalyptic number.

51196970 is a deficient number, since it is larger than the sum of its proper divisors (49782166).

51196970 is a wasteful number, since it uses less digits than its factorization.

51196970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086.

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 51196970 is about 7155.2057971801. The cubic root of 51196970 is about 371.3197815371.

The spelling of 51196970 in words is "fifty-one million, one hundred ninety-six thousand, nine hundred seventy".

Divisors: 1 2 5 10 11 22 55 110 257 514 1285 1811 2570 2827 3622 5654 9055 14135 18110 19921 28270 39842 99605 199210 465427 930854 2327135 4654270 5119697 10239394 25598485 51196970