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159140500 = 2253318281
BaseRepresentation
bin10010111110001…
…00101010010100
3102002110011201121
421133010222110
5311214444000
623442533324
73641446321
oct1137045224
9362404647
10159140500
1181915682
1245367244
1326c7c49c
14171c7b48
15de87b1a
hex97c4a94

159140500 has 24 divisors (see below), whose sum is σ = 347563944. Its totient is φ = 63656000.

The previous prime is 159140491. The next prime is 159140507. The reversal of 159140500 is 5041951.

It can be written as a sum of positive squares in 4 ways, for example, as 1838736 + 157301764 = 1356^2 + 12542^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159140507) 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, 158641 + ... + 159640.

It is an arithmetic number, because the mean of its divisors is an integer number (14481831).

Almost surely, 2159140500 is an apocalyptic number.

159140500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159140500 is an abundant number, since it is smaller than the sum of its proper divisors (188423444).

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

159140500 is a wasteful number, since it uses less digits than its factorization.

159140500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318300 (or 318288 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 159140500 is about 12615.0901701098. The cubic root of 159140500 is about 541.9096766285.

The spelling of 159140500 in words is "one hundred fifty-nine million, one hundred forty thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 318281 636562 1273124 1591405 3182810 6365620 7957025 15914050 31828100 39785125 79570250 159140500