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151245812 = 2247217117
BaseRepresentation
bin10010000001111…
…01001111110100
3101112121002020202
421000331033310
5302204331222
623001420032
73514365614
oct1100751764
9345532222
10151245812
1178413243
124279a618
1325446c83
1416130a44
15d428892
hex903d3f4

151245812 has 18 divisors (see below), whose sum is σ = 270447282. Its totient is φ = 74009584.

The previous prime is 151245811. The next prime is 151245839. The reversal of 151245812 is 218542151.

151245812 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 78074896 + 73170916 = 8836^2 + 8554^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151245811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278 + ... + 17394.

It is an arithmetic number, because the mean of its divisors is an integer number (15024849).

Almost surely, 2151245812 is an apocalyptic number.

It is an amenable number.

151245812 is a deficient number, since it is larger than the sum of its proper divisors (119201470).

151245812 is a wasteful number, since it uses less digits than its factorization.

151245812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17215 (or 17166 counting only the distinct ones).

The product of its digits is 3200, while the sum is 29.

The square root of 151245812 is about 12298.2036086576. The cubic root of 151245812 is about 532.7962007157.

Adding to 151245812 its reverse (218542151), we get a palindrome (369787963).

The spelling of 151245812 in words is "one hundred fifty-one million, two hundred forty-five thousand, eight hundred twelve".

Divisors: 1 2 4 47 94 188 2209 4418 8836 17117 34234 68468 804499 1608998 3217996 37811453 75622906 151245812