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431145102 = 2371857517
BaseRepresentation
bin11001101100101…
…100000010001110
31010001021102220010
4121230230002032
51340333120402
6110440534050
713453446543
oct3154540216
91101242803
10431145102
11201408773
12100481326
136b42785b
1441390bca
1527cb6a6c
hex19b2c08e

431145102 has 8 divisors (see below), whose sum is σ = 862290216. Its totient is φ = 143715032.

The previous prime is 431145101. The next prime is 431145139. The reversal of 431145102 is 201541134.

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

431145102 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431145101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35928753 + ... + 35928764.

It is an arithmetic number, because the mean of its divisors is an integer number (107786277).

Almost surely, 2431145102 is an apocalyptic number.

431145102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431145102 is a wasteful number, since it uses less digits than its factorization.

431145102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71857522.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 431145102 is about 20764.0338566474. The cubic root of 431145102 is about 755.4536413848.

Adding to 431145102 its reverse (201541134), we get a palindrome (632686236).

The spelling of 431145102 in words is "four hundred thirty-one million, one hundred forty-five thousand, one hundred two".

Divisors: 1 2 3 6 71857517 143715034 215572551 431145102