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83390529288 = 23311228715747
BaseRepresentation
bin100110110101001110…
…1100111111100001000
321222020121222210210210
41031222131213330020
52331240433414123
6102150432241120
76011331542433
oct1155235477410
9258217883723
1083390529288
1132402863a00
12141b33a01a0
137b2c6c2c71
14407119c81a
152280ea4e93
hex136a767f08

83390529288 has 48 divisors (see below), whose sum is σ = 229151669040. Its totient is φ = 25269856480.

The previous prime is 83390529283. The next prime is 83390529331. The reversal of 83390529288 is 88292509338.

It is not an unprimeable number, because it can be changed into a prime (83390529283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14354970 + ... + 14360777.

It is an arithmetic number, because the mean of its divisors is an integer number (4773993105).

Almost surely, 283390529288 is an apocalyptic number.

83390529288 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

83390529288 is an abundant number, since it is smaller than the sum of its proper divisors (145761139752).

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

83390529288 is a wasteful number, since it uses less digits than its factorization.

83390529288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28715778 (or 28715763 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 57.

The spelling of 83390529288 in words is "eighty-three billion, three hundred ninety million, five hundred twenty-nine thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 121 132 242 264 363 484 726 968 1452 2904 28715747 57431494 86147241 114862988 172294482 229725976 315873217 344588964 631746434 689177928 947619651 1263492868 1895239302 2526985736 3474605387 3790478604 6949210774 7580957208 10423816161 13898421548 20847632322 27796843096 41695264644 83390529288