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11384444261 = 109110939547
BaseRepresentation
bin10101001101001000…
…01101010101100101
31002101101211200121202
422212210031111211
5141303404204021
65121400052245
7552055115411
oct124644152545
932341750552
1011384444261
114912249523
122258764085
1310c5780668
1479dd85d41
154696cda0b
hex2a690d565

11384444261 has 8 divisors (see below), whose sum is σ = 11406499104. Its totient is φ = 11362412880.

The previous prime is 11384444207. The next prime is 11384444311. The reversal of 11384444261 is 16244448311.

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 11384444261 - 214 = 11384427877 is a prime.

It is a super-2 number, since 2×113844442612 (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 (11384444161) 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, 1187690 + ... + 1197236.

It is an arithmetic number, because the mean of its divisors is an integer number (1425812388).

Almost surely, 211384444261 is an apocalyptic number.

It is an amenable number.

11384444261 is a deficient number, since it is larger than the sum of its proper divisors (22054843).

11384444261 is a wasteful number, since it uses less digits than its factorization.

11384444261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11731.

The product of its digits is 73728, while the sum is 38.

The spelling of 11384444261 in words is "eleven billion, three hundred eighty-four million, four hundred forty-four thousand, two hundred sixty-one".

Divisors: 1 1091 1093 9547 1192463 10415777 10434871 11384444261