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10554993 = 321172777
BaseRepresentation
bin101000010000…
…111001110001
3201212020201200
4220100321301
510200224433
61014121413
7155500401
oct50207161
921766650
1010554993
115a5a139
123650269
132257377
14158a801
15dd7613
hexa10e71

10554993 has 6 divisors (see below), whose sum is σ = 15246114. Its totient is φ = 7036656.

The previous prime is 10554989. The next prime is 10555007. The reversal of 10554993 is 39945501.

10554993 is a `hidden beast` number, since 10 + 554 + 9 + 93 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7969329 + 2585664 = 2823^2 + 1608^2 .

It is not a de Polignac number, because 10554993 - 22 = 10554989 is a prime.

It is a super-2 number, since 2×105549932 = 222815754460098, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10554913) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 586380 + ... + 586397.

It is an arithmetic number, because the mean of its divisors is an integer number (2541019).

Almost surely, 210554993 is an apocalyptic number.

It is an amenable number.

10554993 is a deficient number, since it is larger than the sum of its proper divisors (4691121).

10554993 is a wasteful number, since it uses less digits than its factorization.

10554993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172783 (or 1172780 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 10554993 is about 3248.8448716428. The cubic root of 10554993 is about 219.3575818347.

The spelling of 10554993 in words is "ten million, five hundred fifty-four thousand, nine hundred ninety-three".

Divisors: 1 3 9 1172777 3518331 10554993