Search a number
BaseRepresentation
bin10101001101110110…
…10010011101101000
31002101211020002002012
422212323102131220
5141311431311233
65122133455052
7552160414655
oct124673223550
932354202065
1011390494568
114915701182
12225a7a1488
1310c6abb51b
147a0abcc2c
15469ec6548
hex2a6ed2768

11390494568 has 8 divisors (see below), whose sum is σ = 21357177330. Its totient is φ = 5695247280.

The previous prime is 11390494567. The next prime is 11390494613. The reversal of 11390494568 is 86549409311.

It can be written as a sum of positive squares in only one way, i.e., 9560537284 + 1829957284 = 97778^2 + 42778^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×113904945683 (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11390494567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711905903 + ... + 711905918.

Almost surely, 211390494568 is an apocalyptic number.

It is an amenable number.

11390494568 is a deficient number, since it is larger than the sum of its proper divisors (9966682762).

11390494568 is a wasteful number, since it uses less digits than its factorization.

11390494568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423811827 (or 1423811823 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 11390494568 in words is "eleven billion, three hundred ninety million, four hundred ninety-four thousand, five hundred sixty-eight".