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745705436249 = 946378802223
BaseRepresentation
bin10101101100111111000…
…00011111010001011001
32122021210111100010102002
422312133200133101121
544204201042424444
61330323343250345
7104606163424154
oct12663740372131
92567714303362
10745705436249
11268285307404
121006332a99b5
1355420571987
1428141524c9b
15145e68ddd4e
hexad9f81f459

745705436249 has 4 divisors (see below), whose sum is σ = 745784247936. Its totient is φ = 745626624564.

The previous prime is 745705436233. The next prime is 745705436309. The reversal of 745705436249 is 942634507547.

It is a happy number.

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 745705436249 - 24 = 745705436233 is a prime.

It is a super-2 number, since 2×7457054362492 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 745705436194 and 745705436203.

It is not an unprimeable number, because it can be changed into a prime (745705436549) 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, 39391649 + ... + 39410574.

It is an arithmetic number, because the mean of its divisors is an integer number (186446061984).

Almost surely, 2745705436249 is an apocalyptic number.

It is an amenable number.

745705436249 is a deficient number, since it is larger than the sum of its proper divisors (78811687).

745705436249 is an equidigital number, since it uses as much as digits as its factorization.

745705436249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78811686.

The product of its (nonzero) digits is 25401600, while the sum is 56.

The spelling of 745705436249 in words is "seven hundred forty-five billion, seven hundred five million, four hundred thirty-six thousand, two hundred forty-nine".

Divisors: 1 9463 78802223 745705436249