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158107949 = 1915753003
BaseRepresentation
bin10010110110010…
…00100100101101
3102000111201022222
421123020210231
5310433423244
623404445125
73626616056
oct1133104455
9360451288
10158107949
118127a92a
1244b497a5
13269aa4cc
1416dd972d
15dd31bee
hex96c892d

158107949 has 8 divisors (see below), whose sum is σ = 167492640. Its totient is φ = 148829616.

The previous prime is 158107933. The next prime is 158107951. The reversal of 158107949 is 949701851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158107949 - 24 = 158107933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158107969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23519 + ... + 29484.

It is an arithmetic number, because the mean of its divisors is an integer number (20936580).

Almost surely, 2158107949 is an apocalyptic number.

158107949 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

158107949 is a deficient number, since it is larger than the sum of its proper divisors (9384691).

158107949 is a wasteful number, since it uses less digits than its factorization.

158107949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53179.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 158107949 is about 12574.0983374555. The cubic root of 158107949 is about 540.7351088010.

The spelling of 158107949 in words is "one hundred fifty-eight million, one hundred seven thousand, nine hundred forty-nine".

Divisors: 1 19 157 2983 53003 1007057 8321471 158107949