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158668055 = 57131773281
BaseRepresentation
bin10010111010100…
…01010100010111
3102001120011122122
421131101110113
5311104334210
623424450155
73634441040
oct1135212427
9361504578
10158668055
1181622727
124517995b
1326b45430
14171038c7
15dde2b55
hex9751517

158668055 has 64 divisors (see below), whose sum is σ = 252419328. Its totient is φ = 92897280.

The previous prime is 158668049. The next prime is 158668067. The reversal of 158668055 is 550866851.

158668055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 158668055 - 218 = 158405911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 158667997 and 158668015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 564515 + ... + 564795.

It is an arithmetic number, because the mean of its divisors is an integer number (3944052).

Almost surely, 2158668055 is an apocalyptic number.

158668055 is a deficient number, since it is larger than the sum of its proper divisors (93751273).

158668055 is a wasteful number, since it uses less digits than its factorization.

158668055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396.

The product of its (nonzero) digits is 288000, while the sum is 44.

The square root of 158668055 is about 12596.3508604675. The cubic root of 158668055 is about 541.3728841094.

The spelling of 158668055 in words is "one hundred fifty-eight million, six hundred sixty-eight thousand, fifty-five".

Divisors: 1 5 7 13 17 35 65 73 85 91 119 221 281 365 455 511 595 949 1105 1241 1405 1547 1967 2555 3653 4745 4777 6205 6643 7735 8687 9835 16133 18265 20513 23885 25571 33215 33439 43435 62101 80665 102565 112931 127855 143591 167195 266669 310505 348721 434707 564655 717955 1333345 1743605 1866683 2173535 2441047 4533373 9333415 12205235 22666865 31733611 158668055