Search a number
-
+
152870290 = 2517899237
BaseRepresentation
bin10010001110010…
…01110110010010
3101122122121121121
421013021312102
5303113322130
623100312454
73534242656
oct1107116622
9348577547
10152870290
1179322791
124324272a
13258954c1
1416434a66
15d649d7a
hex91c9d92

152870290 has 16 divisors (see below), whose sum is σ = 291353112. Its totient is φ = 57551104.

The previous prime is 152870197. The next prime is 152870299. The reversal of 152870290 is 92078251.

It can be written as a sum of positive squares in 4 ways, for example, as 110607289 + 42263001 = 10517^2 + 6501^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (152870299) 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, 449449 + ... + 449788.

Almost surely, 2152870290 is an apocalyptic number.

152870290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

152870290 is a deficient number, since it is larger than the sum of its proper divisors (138482822).

152870290 is a wasteful number, since it uses less digits than its factorization.

152870290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899261.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 152870290 is about 12364.0725491239. The cubic root of 152870290 is about 534.6969372736.

The spelling of 152870290 in words is "one hundred fifty-two million, eight hundred seventy thousand, two hundred ninety".

Divisors: 1 2 5 10 17 34 85 170 899237 1798474 4496185 8992370 15287029 30574058 76435145 152870290