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55930730 = 255593073
BaseRepresentation
bin1101010101011…
…0111101101010
310220020120112112
43111112331222
5103304240410
65314442322
71246255232
oct325267552
9126216475
1055930730
1129631649
12168933a2
13b783a0b
1475dccc2
154d9c105
hex3556f6a

55930730 has 8 divisors (see below), whose sum is σ = 100675332. Its totient is φ = 22372288.

The previous prime is 55930691. The next prime is 55930739. The reversal of 55930730 is 3703955.

It can be written as a sum of positive squares in 2 ways, for example, as 54449641 + 1481089 = 7379^2 + 1217^2 .

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

It is not an unprimeable number, because it can be changed into a prime (55930739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2796527 + ... + 2796546.

Almost surely, 255930730 is an apocalyptic number.

55930730 is a deficient number, since it is larger than the sum of its proper divisors (44744602).

55930730 is a wasteful number, since it uses less digits than its factorization.

55930730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5593080.

The product of its (nonzero) digits is 14175, while the sum is 32.

The square root of 55930730 is about 7478.6850448458. The cubic root of 55930730 is about 382.4284229630.

The spelling of 55930730 in words is "fifty-five million, nine hundred thirty thousand, seven hundred thirty".

Divisors: 1 2 5 10 5593073 11186146 27965365 55930730