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1144050661 = 136710191289
BaseRepresentation
bin100010000110000…
…1101001111100101
32221201201210110201
41010030031033211
54320334110121
6305304550501
740231161445
oct10414151745
92851653421
101144050661
11537872216
1227b182431
13153035170
14abd28125
156a687e91
hex4430d3e5

1144050661 has 16 divisors (see below), whose sum is σ = 1252641600. Its totient is φ = 1038457728.

The previous prime is 1144050623. The next prime is 1144050703. The reversal of 1144050661 is 1660504411.

It is a cyclic number.

It is not a de Polignac number, because 1144050661 - 211 = 1144048613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144050961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 886905 + ... + 888193.

It is an arithmetic number, because the mean of its divisors is an integer number (78290100).

Almost surely, 21144050661 is an apocalyptic number.

It is an amenable number.

1144050661 is a deficient number, since it is larger than the sum of its proper divisors (108590939).

1144050661 is a wasteful number, since it uses less digits than its factorization.

1144050661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1144050661 is about 33823.8179542168. The cubic root of 1144050661 is about 1045.8797445067.

The spelling of 1144050661 in words is "one billion, one hundred forty-four million, fifty thousand, six hundred sixty-one".

Divisors: 1 13 67 871 1019 1289 13247 16757 68273 86363 887549 1122719 1313491 17075383 88003897 1144050661