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1082728129 = 71913958567
BaseRepresentation
bin100000010001001…
…0001111011000001
32210110100021202211
41000202101323001
54204134300004
6255234342121
735555015530
oct10042217301
92713307684
101082728129
1150619873a
1226272a941
13143414242
14a3b24317
15650c3504
hex40891ec1

1082728129 has 16 divisors (see below), whose sum is σ = 1311923200. Its totient is φ = 872867664.

The previous prime is 1082728099. The next prime is 1082728187. The reversal of 1082728129 is 9218272801.

It is a cyclic number.

It is not a de Polignac number, because 1082728129 - 221 = 1080630977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1082728091 and 1082728100.

It is not an unprimeable number, because it can be changed into a prime (1082728429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10797 + ... + 47770.

It is an arithmetic number, because the mean of its divisors is an integer number (81995200).

Almost surely, 21082728129 is an apocalyptic number.

1082728129 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1082728129 is a deficient number, since it is larger than the sum of its proper divisors (229195071).

1082728129 is a wasteful number, since it uses less digits than its factorization.

1082728129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58732.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 1082728129 is about 32904.8344320405. The cubic root of 1082728129 is about 1026.8487369769.

The spelling of 1082728129 in words is "one billion, eighty-two million, seven hundred twenty-eight thousand, one hundred twenty-nine".

Divisors: 1 7 19 133 139 973 2641 18487 58567 409969 1112773 7789411 8140813 56985691 154675447 1082728129