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145851974357 = 197676419703
BaseRepresentation
bin1000011111010101110…
…1001000001011010101
3111221110200012222102012
42013311131020023111
54342201101134412
6151000425554005
713352230220015
oct2076535101325
9457420188365
10145851974357
1156945701091
1224325645905
13109a50a070b
1470b8907c45
153bd9869c22
hex21f57482d5

145851974357 has 4 divisors (see below), whose sum is σ = 153528394080. Its totient is φ = 138175554636.

The previous prime is 145851974341. The next prime is 145851974371. The reversal of 145851974357 is 753479158541.

145851974357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 145851974357 - 24 = 145851974341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145851974296 and 145851974305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145851974327) 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 3 ways as a sum of consecutive naturals, for example, 3838209833 + ... + 3838209870.

It is an arithmetic number, because the mean of its divisors is an integer number (38382098520).

Almost surely, 2145851974357 is an apocalyptic number.

It is an amenable number.

145851974357 is a deficient number, since it is larger than the sum of its proper divisors (7676419723).

145851974357 is an equidigital number, since it uses as much as digits as its factorization.

145851974357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7676419722.

The product of its digits is 21168000, while the sum is 59.

The spelling of 145851974357 in words is "one hundred forty-five billion, eight hundred fifty-one million, nine hundred seventy-four thousand, three hundred fifty-seven".

Divisors: 1 19 7676419703 145851974357