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10142323001 = 52319392587
BaseRepresentation
bin10010111001000011…
…11001000100111001
3222011211120101120122
421130201321010321
5131232413314001
64354225103025
7506223215546
oct113441710471
928154511518
1010142323001
114335093428
121b70787a75
13c5832bc75
146c300dbcd
153e5622b1b
hex25c879139

10142323001 has 4 divisors (see below), whose sum is σ = 10161716112. Its totient is φ = 10122929892.

The previous prime is 10142322989. The next prime is 10142323013. The reversal of 10142323001 is 10032324101.

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.

It is an interprime number because it is at equal distance from previous prime (10142322989) and next prime (10142323013).

It is a cyclic number.

It is not a de Polignac number, because 10142323001 - 26 = 10142322937 is a prime.

It is a super-2 number, since 2×101423230012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10142323021) 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, 9695771 + ... + 9696816.

It is an arithmetic number, because the mean of its divisors is an integer number (2540429028).

Almost surely, 210142323001 is an apocalyptic number.

It is an amenable number.

10142323001 is a deficient number, since it is larger than the sum of its proper divisors (19393111).

10142323001 is an equidigital number, since it uses as much as digits as its factorization.

10142323001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19393110.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10142323001 its reverse (10032324101), we get a palindrome (20174647102).

The spelling of 10142323001 in words is "ten billion, one hundred forty-two million, three hundred twenty-three thousand, one".

Divisors: 1 523 19392587 10142323001