Search a number
-
+
155124201 = 3173041651
BaseRepresentation
bin10010011111100…
…00000111101001
3101210220010101210
421033300013221
5304202433301
623220503333
73562351101
oct1117600751
9353803353
10155124201
117a622121
1243b4ab49
13261a438b
1416860201
15d942ad6
hex93f01e9

155124201 has 8 divisors (see below), whose sum is σ = 218998944. Its totient is φ = 97332800.

The previous prime is 155124199. The next prime is 155124209. The reversal of 155124201 is 102421551.

155124201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 155124201 - 21 = 155124199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155124209) 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, 1520775 + ... + 1520876.

It is an arithmetic number, because the mean of its divisors is an integer number (27374868).

Almost surely, 2155124201 is an apocalyptic number.

It is an amenable number.

155124201 is a deficient number, since it is larger than the sum of its proper divisors (63874743).

155124201 is a wasteful number, since it uses less digits than its factorization.

155124201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3041671.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 155124201 is about 12454.8866313588. The cubic root of 155124201 is about 537.3119743272.

Adding to 155124201 its reverse (102421551), we get a palindrome (257545752).

It can be divided in two parts, 1551 and 24201, that added together give a palindrome (25752).

The spelling of 155124201 in words is "one hundred fifty-five million, one hundred twenty-four thousand, two hundred one".

Divisors: 1 3 17 51 3041651 9124953 51708067 155124201