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129153760 = 25517103461
BaseRepresentation
bin1111011001010…
…11101011100000
3100000000200122121
413230223223200
5231030410020
620452114024
73125534401
oct754535340
9300020577
10129153760
11669a414a
1237305914
13209b0558
141321d9a8
15b512baa
hex7b2bae0

129153760 has 96 divisors (see below), whose sum is σ = 326918592. Its totient is φ = 48046080.

The previous prime is 129153737. The next prime is 129153767. The reversal of 129153760 is 67351921.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129153767) 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, 279930 + ... + 280390.

It is an arithmetic number, because the mean of its divisors is an integer number (3405402).

Almost surely, 2129153760 is an apocalyptic number.

129153760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129153760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163459296).

129153760 is an abundant number, since it is smaller than the sum of its proper divisors (197764832).

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

129153760 is a wasteful number, since it uses less digits than its factorization.

129153760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 129153760 is about 11364.5835823404. The cubic root of 129153760 is about 505.4781081343.

The spelling of 129153760 in words is "one hundred twenty-nine million, one hundred fifty-three thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 16 17 20 32 34 40 68 80 85 103 136 160 170 206 272 340 412 461 515 544 680 824 922 1030 1360 1648 1751 1844 2060 2305 2720 3296 3502 3688 4120 4610 7004 7376 7837 8240 8755 9220 14008 14752 15674 16480 17510 18440 28016 31348 35020 36880 39185 47483 56032 62696 70040 73760 78370 94966 125392 140080 156740 189932 237415 250784 280160 313480 379864 474830 626960 759728 807211 949660 1253920 1519456 1614422 1899320 3228844 3798640 4036055 6457688 7597280 8072110 12915376 16144220 25830752 32288440 64576880 129153760