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51906770 = 25107139349
BaseRepresentation
bin1100011000000…
…0100011010010
310121200010200222
43012000203102
5101242004040
65052313042
71200125456
oct306004322
9117603628
1051906770
1127333363
1215472782
13a9a5286
146c72666
154854bb5
hex31808d2

51906770 has 32 divisors (see below), whose sum is σ = 95256000. Its totient is φ = 20362176.

The previous prime is 51906707. The next prime is 51906787. The reversal of 51906770 is 7760915.

It is a self number, because there is not a number n which added to its sum of digits gives 51906770.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148556 + ... + 148904.

It is an arithmetic number, because the mean of its divisors is an integer number (2976750).

Almost surely, 251906770 is an apocalyptic number.

51906770 is a deficient number, since it is larger than the sum of its proper divisors (43349230).

51906770 is a wasteful number, since it uses less digits than its factorization.

51906770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 51906770 is about 7204.6353134631. The cubic root of 51906770 is about 373.0279168443.

The spelling of 51906770 in words is "fifty-one million, nine hundred six thousand, seven hundred seventy".

Divisors: 1 2 5 10 107 139 214 278 349 535 695 698 1070 1390 1745 3490 14873 29746 37343 48511 74365 74686 97022 148730 186715 242555 373430 485110 5190677 10381354 25953385 51906770