Search a number
-
+
151992641 = 3493971097
BaseRepresentation
bin10010000111100…
…11100101000001
3101121000000201002
421003303211001
5302402231031
623025421345
73523626143
oct1103634501
9347000632
10151992641
1178883359
1242a9a855
1325648b98
1416286c93
15d524ccb
hex90f3941

151992641 has 8 divisors (see below), whose sum is σ = 152951400. Its totient is φ = 151037568.

The previous prime is 151992623. The next prime is 151992661. The reversal of 151992641 is 146299151.

It can be written as a sum of positive squares in 4 ways, for example, as 33640000 + 118352641 = 5800^2 + 10879^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 151992641 - 214 = 151976257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151992595 and 151992604.

It is not an unprimeable number, because it can be changed into a prime (151992601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138005 + ... + 139101.

It is an arithmetic number, because the mean of its divisors is an integer number (19118925).

Almost surely, 2151992641 is an apocalyptic number.

It is an amenable number.

151992641 is a deficient number, since it is larger than the sum of its proper divisors (958759).

151992641 is a wasteful number, since it uses less digits than its factorization.

151992641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843.

The product of its digits is 19440, while the sum is 38.

The square root of 151992641 is about 12328.5295554661. The cubic root of 151992641 is about 533.6717169880.

The spelling of 151992641 in words is "one hundred fifty-one million, nine hundred ninety-two thousand, six hundred forty-one".

Divisors: 1 349 397 1097 138553 382853 435509 151992641