Search a number
-
+
254325315450421 = 1032469177819907
BaseRepresentation
bin111001110100111010111010…
…000101011011011000110101
31020100111021002111220011211101
4321310322322011123120311
5231313331221223403141
62300523234220010101
7104366253255535345
oct7164727205333065
91210437074804741
10254325315450421
1174043840362956
1224635b49690931
13abbaa0b2bcb37
1446b35a78ccd25
151e608b9a9c531
hexe74eba15b635

254325315450421 has 4 divisors (see below), whose sum is σ = 256794493270432. Its totient is φ = 251856137630412.

The previous prime is 254325315450413. The next prime is 254325315450431. The reversal of 254325315450421 is 124054513523452.

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 a cyclic number.

It is not a de Polignac number, because 254325315450421 - 23 = 254325315450413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254325315450431) 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, 1234588909851 + ... + 1234588910056.

It is an arithmetic number, because the mean of its divisors is an integer number (64198623317608).

Almost surely, 2254325315450421 is an apocalyptic number.

It is an amenable number.

254325315450421 is a deficient number, since it is larger than the sum of its proper divisors (2469177820011).

254325315450421 is a wasteful number, since it uses less digits than its factorization.

254325315450421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469177820010.

The product of its (nonzero) digits is 2880000, while the sum is 46.

Adding to 254325315450421 its reverse (124054513523452), we get a palindrome (378379828973873).

The spelling of 254325315450421 in words is "two hundred fifty-four trillion, three hundred twenty-five billion, three hundred fifteen million, four hundred fifty thousand, four hundred twenty-one".

Divisors: 1 103 2469177819907 254325315450421