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151042145 = 530208429
BaseRepresentation
bin10010000000010…
…11100001100001
3101112012201212112
421000023201201
5302131322040
622553205105
73512560052
oct1100134141
9345181775
10151042145
1178294221
1242700795
13253a5367
14160ba729
15d3d8365
hex900b861

151042145 has 4 divisors (see below), whose sum is σ = 181250580. Its totient is φ = 120833712.

The previous prime is 151042139. The next prime is 151042181. The reversal of 151042145 is 541240151.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38427601 + 112614544 = 6199^2 + 10612^2 .

It is a cyclic number.

It is not a de Polignac number, because 151042145 - 226 = 83933281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151042145.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15104210 + ... + 15104219.

It is an arithmetic number, because the mean of its divisors is an integer number (45312645).

Almost surely, 2151042145 is an apocalyptic number.

It is an amenable number.

151042145 is a deficient number, since it is larger than the sum of its proper divisors (30208435).

151042145 is an equidigital number, since it uses as much as digits as its factorization.

151042145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30208434.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 151042145 is about 12289.9204635343. The cubic root of 151042145 is about 532.5569395497.

Adding to 151042145 its reverse (541240151), we get a palindrome (692282296).

The spelling of 151042145 in words is "one hundred fifty-one million, forty-two thousand, one hundred forty-five".

Divisors: 1 5 30208429 151042145