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159139152 = 24321497417
BaseRepresentation
bin10010111110001…
…00010101010000
3102002110002212200
421133010111100
5311214423102
623442523200
73641442354
oct1137042520
9362402780
10159139152
1181914667
1245366500
1326c7b9a3
14171c7464
15de8751c
hex97c4550

159139152 has 60 divisors (see below), whose sum is σ = 448418100. Its totient is φ = 52683264.

The previous prime is 159139121. The next prime is 159139157. The reversal of 159139152 is 251931951.

It can be written as a sum of positive squares in 2 ways, for example, as 71978256 + 87160896 = 8484^2 + 9336^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159139157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17748 + ... + 25164.

It is an arithmetic number, because the mean of its divisors is an integer number (7473635).

Almost surely, 2159139152 is an apocalyptic number.

159139152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 159139152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224209050).

159139152 is an abundant number, since it is smaller than the sum of its proper divisors (289278948).

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

159139152 is a wasteful number, since it uses less digits than its factorization.

159139152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7580 (or 7571 counting only the distinct ones).

The product of its digits is 12150, while the sum is 36.

The square root of 159139152 is about 12615.0367419203. The cubic root of 159139152 is about 541.9081465418.

The spelling of 159139152 in words is "one hundred fifty-nine million, one hundred thirty-nine thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 149 298 447 596 894 1192 1341 1788 2384 2682 3576 5364 7152 7417 10728 14834 21456 22251 29668 44502 59336 66753 89004 118672 133506 178008 267012 356016 534024 1068048 1105133 2210266 3315399 4420532 6630798 8841064 9946197 13261596 17682128 19892394 26523192 39784788 53046384 79569576 159139152