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151020146 = 2174441769
BaseRepresentation
bin10010000000001…
…10001001110010
3101112011121200202
421000012021302
5302130121041
622552515202
73512435654
oct1100061162
9345147622
10151020146
1178279742
12426abb02
1325398344
14160b26d4
15d3d1a9b
hex9006272

151020146 has 8 divisors (see below), whose sum is σ = 239855580. Its totient is φ = 71068288.

The previous prime is 151020143. The next prime is 151020157. The reversal of 151020146 is 641020151.

It can be written as a sum of positive squares in 2 ways, for example, as 151019521 + 625 = 12289^2 + 25^2 .

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

It is a super-2 number, since 2×1510201462 = 45614168995722632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (151020143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2220851 + ... + 2220918.

Almost surely, 2151020146 is an apocalyptic number.

151020146 is a deficient number, since it is larger than the sum of its proper divisors (88835434).

151020146 is a wasteful number, since it uses less digits than its factorization.

151020146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4441788.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 151020146 is about 12289.0254292194. The cubic root of 151020146 is about 532.5310829939.

Adding to 151020146 its reverse (641020151), we get a palindrome (792040297).

The spelling of 151020146 in words is "one hundred fifty-one million, twenty thousand, one hundred forty-six".

Divisors: 1 2 17 34 4441769 8883538 75510073 151020146