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1131113130 = 235719283487
BaseRepresentation
bin100001101101011…
…0110101010101010
32220211101111111220
41003122312222222
54304031110010
6304123402510
740013205630
oct10332665252
92824344456
101131113130
11530536044
12276983436
13150455514
14aa31b350
156947e970
hex436b6aaa

1131113130 has 64 divisors (see below), whose sum is σ = 3265781760. Its totient is φ = 244931904.

The previous prime is 1131113107. The next prime is 1131113197. The reversal of 1131113130 is 313111311.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137754 + ... + 145733.

It is an arithmetic number, because the mean of its divisors is an integer number (51027840).

Almost surely, 21131113130 is an apocalyptic number.

1131113130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131113130 is an abundant number, since it is smaller than the sum of its proper divisors (2134668630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131113130 is a wasteful number, since it uses less digits than its factorization.

1131113130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283523.

The product of its (nonzero) digits is 27, while the sum is 15.

The square root of 1131113130 is about 33632.0253627402. The cubic root of 1131113130 is about 1041.9223352236.

Adding to 1131113130 its reverse (313111311), we get a palindrome (1444224441).

The spelling of 1131113130 in words is "one billion, one hundred thirty-one million, one hundred thirteen thousand, one hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 19 21 30 35 38 42 57 70 95 105 114 133 190 210 266 285 399 570 665 798 1330 1995 3990 283487 566974 850461 1417435 1700922 1984409 2834870 3968818 4252305 5386253 5953227 8504610 9922045 10772506 11906454 16158759 19844090 26931265 29766135 32317518 37703771 53862530 59532270 75407542 80793795 113111313 161587590 188518855 226222626 377037710 565556565 1131113130