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11005151557 = 195310928651
BaseRepresentation
bin10100011111111010…
…10100100101000101
31001101222010121211211
422033331110211011
5140014304322212
65020010331421
7536501146651
oct121775244505
931358117754
1011005151557
114738137284
122171729b71
13106500c3ca
14765851a61
1544625a9a7
hex28ff54945

11005151557 has 8 divisors (see below), whose sum is σ = 11802944160. Its totient is φ = 10229216400.

The previous prime is 11005151543. The next prime is 11005151561. The reversal of 11005151557 is 75515150011.

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

It is a cyclic number.

It is not a de Polignac number, because 11005151557 - 219 = 11004627269 is a prime.

It is a super-2 number, since 2×110051515572 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11005158557) 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, 5463319 + ... + 5465332.

It is an arithmetic number, because the mean of its divisors is an integer number (1475368020).

Almost surely, 211005151557 is an apocalyptic number.

It is an amenable number.

11005151557 is a deficient number, since it is larger than the sum of its proper divisors (797792603).

11005151557 is a wasteful number, since it uses less digits than its factorization.

11005151557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10928723.

The product of its (nonzero) digits is 4375, while the sum is 31.

The spelling of 11005151557 in words is "eleven billion, five million, one hundred fifty-one thousand, five hundred fifty-seven".

Divisors: 1 19 53 1007 10928651 207644369 579218503 11005151557