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145304104523 = 972742754617
BaseRepresentation
bin1000011101010011001…
…1001010111001001011
3111220001111022022021212
42013110303022321023
54340040322321043
6150430215123335
713332525336614
oct2072463127113
9456044268255
10145304104523
11566944193a6
12241b207354b
1310918727996
147065c50c0b
153ba66e8018
hex21d4ccae4b

145304104523 has 8 divisors (see below), whose sum is σ = 146810125392. Its totient is φ = 143798247936.

The previous prime is 145304104507. The next prime is 145304104559. The reversal of 145304104523 is 325401403541.

145304104523 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 145304104523 - 24 = 145304104507 is a prime.

It is a super-2 number, since 2×1453041045232 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145304104523.

It is not an unprimeable number, because it can be changed into a prime (145304104223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2633111 + ... + 2687727.

It is an arithmetic number, because the mean of its divisors is an integer number (18351265674).

Almost surely, 2145304104523 is an apocalyptic number.

145304104523 is a deficient number, since it is larger than the sum of its proper divisors (1506020869).

145304104523 is an equidigital number, since it uses as much as digits as its factorization.

145304104523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82141.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 145304104523 in words is "one hundred forty-five billion, three hundred four million, one hundred four thousand, five hundred twenty-three".

Divisors: 1 97 27427 54617 2660419 5297849 1497980459 145304104523