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129310058 = 21789151283
BaseRepresentation
bin1111011010100…
…01110101101010
3100000022122001102
413231101311222
5231100410213
620455321402
73130055153
oct755216552
9300278042
10129310058
1166aa0619
1237380262
1320a36737
141326092a
15b544158
hex7b51d6a

129310058 has 32 divisors (see below), whose sum is σ = 209796480. Its totient is φ = 59558400.

The previous prime is 129310033. The next prime is 129310087. The reversal of 129310058 is 850013921.

It is a self number, because there is not a number n which added to its sum of digits gives 129310058.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 456785 + ... + 457067.

It is an arithmetic number, because the mean of its divisors is an integer number (6556140).

Almost surely, 2129310058 is an apocalyptic number.

129310058 is a deficient number, since it is larger than the sum of its proper divisors (80486422).

129310058 is a wasteful number, since it uses less digits than its factorization.

129310058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 129310058 is about 11371.4580419575. The cubic root of 129310058 is about 505.6819307429.

Adding to 129310058 its reverse (850013921), we get a palindrome (979323979).

The spelling of 129310058 in words is "one hundred twenty-nine million, three hundred ten thousand, fifty-eight".

Divisors: 1 2 17 34 89 151 178 283 302 566 1513 2567 3026 4811 5134 9622 13439 25187 26878 42733 50374 85466 228463 428179 456926 726461 856358 1452922 3803237 7606474 64655029 129310058