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151151201 = 473215983
BaseRepresentation
bin10010000001001…
…10001001100001
3101112102021110122
421000212021201
5302143314301
622555410025
73513523025
oct1100461141
9345367418
10151151201
1178359153
1242753915
1325412ba6
1416108385
15d40a81b
hex9026261

151151201 has 4 divisors (see below), whose sum is σ = 154367232. Its totient is φ = 147935172.

The previous prime is 151151191. The next prime is 151151237. The reversal of 151151201 is 102151151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102151151 = 181564371.

It is a cyclic number.

It is not a de Polignac number, because 151151201 - 222 = 146956897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 151151201.

It is not an unprimeable number, because it can be changed into a prime (151151501) 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, 1607945 + ... + 1608038.

It is an arithmetic number, because the mean of its divisors is an integer number (38591808).

Almost surely, 2151151201 is an apocalyptic number.

It is an amenable number.

151151201 is a deficient number, since it is larger than the sum of its proper divisors (3216031).

151151201 is an equidigital number, since it uses as much as digits as its factorization.

151151201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3216030.

The product of its (nonzero) digits is 50, while the sum is 17.

The square root of 151151201 is about 12294.3564695351. The cubic root of 151151201 is about 532.6850816149.

Subtracting from 151151201 its product of nonzero digits (50), we obtain a palindrome (151151151).

Subtracting from 151151201 its reverse (102151151), we obtain a triangular number (49000050 = T9899).

The spelling of 151151201 in words is "one hundred fifty-one million, one hundred fifty-one thousand, two hundred one".

Divisors: 1 47 3215983 151151201