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151011205 = 530202241
BaseRepresentation
bin10010000000000…
…11111110000101
3101112011011102121
421000003332011
5302124324310
622552405541
73512400622
oct1100037605
9345134377
10151011205
1178272a54
12426a68b1
1325394257
14160ad349
15d3ce0da
hex9003f85

151011205 has 4 divisors (see below), whose sum is σ = 181213452. Its totient is φ = 120808960.

The previous prime is 151011197. The next prime is 151011209. The reversal of 151011205 is 502110151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 502110151 = 1932601607.

It can be written as a sum of positive squares in 2 ways, for example, as 108618084 + 42393121 = 10422^2 + 6511^2 .

It is not a de Polignac number, because 151011205 - 23 = 151011197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151011209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15101116 + ... + 15101125.

It is an arithmetic number, because the mean of its divisors is an integer number (45303363).

Almost surely, 2151011205 is an apocalyptic number.

It is an amenable number.

151011205 is a deficient number, since it is larger than the sum of its proper divisors (30202247).

151011205 is an equidigital number, since it uses as much as digits as its factorization.

151011205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30202246.

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 151011205 is about 12288.6616439708. The cubic root of 151011205 is about 532.5205734592.

Adding to 151011205 its reverse (502110151), we get a palindrome (653121356).

The spelling of 151011205 in words is "one hundred fifty-one million, eleven thousand, two hundred five".

Divisors: 1 5 30202241 151011205