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158023071 = 3247397941
BaseRepresentation
bin10010110101100…
…11110110011111
3102000100101220100
421122303312133
5310423214241
623402552143
73626113443
oct1132636637
9360311810
10158023071
1181222088
1244b08653
132697a99b
1416db6823
15dd169b6
hex96b3d9f

158023071 has 24 divisors (see below), whose sum is σ = 233947584. Its totient is φ = 102738240.

The previous prime is 158023043. The next prime is 158023079. The reversal of 158023071 is 170320851.

It is not a de Polignac number, because 158023071 - 29 = 158022559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158023079) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167461 + ... + 168401.

It is an arithmetic number, because the mean of its divisors is an integer number (9747816).

Almost surely, 2158023071 is an apocalyptic number.

158023071 is a deficient number, since it is larger than the sum of its proper divisors (75924513).

158023071 is a wasteful number, since it uses less digits than its factorization.

158023071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391 (or 1388 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 158023071 is about 12570.7227715832. The cubic root of 158023071 is about 540.6383295008.

The spelling of 158023071 in words is "one hundred fifty-eight million, twenty-three thousand, seventy-one".

Divisors: 1 3 9 47 141 397 423 941 1191 2823 3573 8469 18659 44227 55977 132681 167931 373577 398043 1120731 3362193 17558119 52674357 158023071