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145978144763 = 1124155065313
BaseRepresentation
bin1000011111110011111…
…0011011011111111011
3111221210110122002200012
42013330332123133323
54342430401113023
6151021134132135
713355321520533
oct2077476333773
9457713562605
10145978144763
11569aa947850
122435b95104b
13109c5278069
1470cb58c4c3
153be598d978
hex21fcf9b7fb

145978144763 has 8 divisors (see below), whose sum is σ = 159909671856. Its totient is φ = 132156748800.

The previous prime is 145978144759. The next prime is 145978144771. The reversal of 145978144763 is 367441879541.

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 145978144763 - 22 = 145978144759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145978144703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27530006 + ... + 27535307.

It is an arithmetic number, because the mean of its divisors is an integer number (19988708982).

Almost surely, 2145978144763 is an apocalyptic number.

145978144763 is a deficient number, since it is larger than the sum of its proper divisors (13931527093).

145978144763 is a wasteful number, since it uses less digits than its factorization.

145978144763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55065565.

The product of its digits is 20321280, while the sum is 59.

The spelling of 145978144763 in words is "one hundred forty-five billion, nine hundred seventy-eight million, one hundred forty-four thousand, seven hundred sixty-three".

Divisors: 1 11 241 2651 55065313 605718443 13270740433 145978144763