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11390227863 = 371983343939
BaseRepresentation
bin10101001101110100…
…10001010110010111
31002101210201112020020
422212322101112113
5141311344242423
65122124040223
7552155224260
oct124672212627
932353645206
1011390227863
114915539863
12225a693073
1310c6a27001
147a0a4d967
15469e724e3
hex2a6e91597

11390227863 has 32 divisors (see below), whose sum is σ = 18490214400. Its totient is φ = 6091829856.

The previous prime is 11390227861. The next prime is 11390227873. The reversal of 11390227863 is 36872209311.

It is not a de Polignac number, because 11390227863 - 21 = 11390227861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11390227861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138853 + ... + 205086.

It is an arithmetic number, because the mean of its divisors is an integer number (577819200).

Almost surely, 211390227863 is an apocalyptic number.

11390227863 is a deficient number, since it is larger than the sum of its proper divisors (7099986537).

11390227863 is a wasteful number, since it uses less digits than its factorization.

11390227863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344051.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 11390227863 in words is "eleven billion, three hundred ninety million, two hundred twenty-seven thousand, eight hundred sixty-three".

Divisors: 1 3 7 19 21 57 83 133 249 399 581 1577 1743 4731 11039 33117 343939 1031817 2407573 6534841 7222719 19604523 28546937 45743887 85640811 137231661 199828559 542391803 599485677 1627175409 3796742621 11390227863