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129710350 = 25272114813
BaseRepresentation
bin1111011101100…
…11100100001110
3100001001222011001
413232303210032
5231201212400
620512050514
73133343200
oct756634416
9301058131
10129710350
1167244340
1237533a3a
1320b469b3
1413326770
15b5c2a6a
hex7bb390e

129710350 has 72 divisors (see below), whose sum is σ = 306228168. Its totient is φ = 40420800.

The previous prime is 129710303. The next prime is 129710353. The reversal of 129710350 is 53017921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129710353) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 24544 + ... + 29356.

It is an arithmetic number, because the mean of its divisors is an integer number (4253169).

Almost surely, 2129710350 is an apocalyptic number.

129710350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129710350 is an abundant number, since it is smaller than the sum of its proper divisors (176517818).

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

129710350 is a wasteful number, since it uses less digits than its factorization.

129710350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4850 (or 4838 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 129710350 is about 11389.0451750794. The cubic root of 129710350 is about 506.2031892906.

The spelling of 129710350 in words is "one hundred twenty-nine million, seven hundred ten thousand, three hundred fifty".

Divisors: 1 2 5 7 10 11 14 22 25 35 49 50 55 70 77 98 110 154 175 245 275 350 385 490 539 550 770 1078 1225 1925 2450 2695 3850 4813 5390 9626 13475 24065 26950 33691 48130 52943 67382 105886 120325 168455 235837 240650 264715 336910 370601 471674 529430 741202 842275 1179185 1323575 1684550 1853005 2358370 2594207 2647150 3706010 5188414 5895925 9265025 11791850 12971035 18530050 25942070 64855175 129710350