Search a number
-
+
145411612451 = 720773087493
BaseRepresentation
bin1000011101101100110…
…1010001111100100011
3111220022222121021102222
42013123031101330203
54340300333044301
6150445015301255
713335302212040
oct2073315217443
9456288537388
10145411612451
115673a078726
122422207a82b
1310934a99941
1470762381c7
153bb0d8231b
hex21db351f23

145411612451 has 4 divisors (see below), whose sum is σ = 166184699952. Its totient is φ = 124638524952.

The previous prime is 145411612439. The next prime is 145411612597. The reversal of 145411612451 is 154216114541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154216114541 = 369741713853.

It is a cyclic number.

It is not a de Polignac number, because 145411612451 - 226 = 145344503587 is a prime.

It is a super-2 number, since 2×1454116124512 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145411612651) 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, 10386543740 + ... + 10386543753.

It is an arithmetic number, because the mean of its divisors is an integer number (41546174988).

Almost surely, 2145411612451 is an apocalyptic number.

145411612451 is a deficient number, since it is larger than the sum of its proper divisors (20773087501).

145411612451 is an equidigital number, since it uses as much as digits as its factorization.

145411612451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20773087500.

The product of its digits is 19200, while the sum is 35.

Adding to 145411612451 its reverse (154216114541), we get a palindrome (299627726992).

The spelling of 145411612451 in words is "one hundred forty-five billion, four hundred eleven million, six hundred twelve thousand, four hundred fifty-one".

Divisors: 1 7 20773087493 145411612451