Search a number
-
+
145372367661 = 348457455887
BaseRepresentation
bin1000011101100011011…
…1100100101100101101
3111220020020202102201020
42013120313210230231
54340210311231121
6150441054204353
713334314510533
oct2073067445455
9456206672636
10145372367661
1156719a03514
1224210ab36b9
1310929908a81
147070d40153
153bac6ce1c6
hex21d8de4b2d

145372367661 has 4 divisors (see below), whose sum is σ = 193829823552. Its totient is φ = 96914911772.

The previous prime is 145372367659. The next prime is 145372367663. The reversal of 145372367661 is 166763273541.

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 an interprime number because it is at equal distance from previous prime (145372367659) and next prime (145372367663).

It is a cyclic number.

It is not a de Polignac number, because 145372367661 - 21 = 145372367659 is a prime.

It is a super-2 number, since 2×1453723676612 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145372367663) 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, 24228727941 + ... + 24228727946.

It is an arithmetic number, because the mean of its divisors is an integer number (48457455888).

Almost surely, 2145372367661 is an apocalyptic number.

It is an amenable number.

145372367661 is a deficient number, since it is larger than the sum of its proper divisors (48457455891).

145372367661 is an equidigital number, since it uses as much as digits as its factorization.

145372367661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48457455890.

The product of its digits is 3810240, while the sum is 51.

The spelling of 145372367661 in words is "one hundred forty-five billion, three hundred seventy-two million, three hundred sixty-seven thousand, six hundred sixty-one".

Divisors: 1 3 48457455887 145372367661