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145104155 = 5719321481
BaseRepresentation
bin10001010011000…
…01110100011011
3101010001001110222
420221201310123
5244121313110
622222030255
73411236120
oct1051416433
9333031428
10145104155
11749a8999
124071838b
13240a6661
14153b2747
15cb13c55
hex8a61d1b

145104155 has 16 divisors (see below), whose sum is σ = 200040384. Its totient is φ = 98979840.

The previous prime is 145104151. The next prime is 145104199. The reversal of 145104155 is 551401541.

It is not a de Polignac number, because 145104155 - 22 = 145104151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145104151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3986 + ... + 17495.

It is an arithmetic number, because the mean of its divisors is an integer number (12502524).

Almost surely, 2145104155 is an apocalyptic number.

145104155 is a deficient number, since it is larger than the sum of its proper divisors (54936229).

145104155 is a wasteful number, since it uses less digits than its factorization.

145104155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21686.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 145104155 is about 12045.9186034109. The cubic root of 145104155 is about 525.4845473597.

Adding to 145104155 its reverse (551401541), we get a palindrome (696505696).

The spelling of 145104155 in words is "one hundred forty-five million, one hundred four thousand, one hundred fifty-five".

Divisors: 1 5 7 35 193 965 1351 6755 21481 107405 150367 751835 4145833 20729165 29020831 145104155