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145451315044 = 2275194689823
BaseRepresentation
bin1000011101110110010…
…0101110111101100100
3111220102202022101011101
42013131210232331210
54340341014040134
6150452554245444
713336263531040
oct2073544567544
9456382271141
10145451315044
115675a525892
1224233426884
131094008acb9
14707b611020
153bb45c5e14
hex21dd92ef64

145451315044 has 12 divisors (see below), whose sum is σ = 290902630144. Its totient is φ = 62336277864.

The previous prime is 145451315039. The next prime is 145451315099. The reversal of 145451315044 is 440513154541.

145451315044 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 145451314994 and 145451315012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2597344884 + ... + 2597344939.

Almost surely, 2145451315044 is an apocalyptic number.

145451315044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145451315044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145451315044 is a wasteful number, since it uses less digits than its factorization.

145451315044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5194689834 (or 5194689832 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 145451315044 its reverse (440513154541), we get a palindrome (585964469585).

The spelling of 145451315044 in words is "one hundred forty-five billion, four hundred fifty-one million, three hundred fifteen thousand, forty-four".

Divisors: 1 2 4 7 14 28 5194689823 10389379646 20778759292 36362828761 72725657522 145451315044