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154045045 = 57113112907
BaseRepresentation
bin10010010111010…
…00101001110101
3101201212022002001
421023220221311
5303413420140
623141415301
73550234630
oct1113505165
9351768061
10154045045
1179a55360
124370a531
1325bb711b
141665cc17
15d7cce9a
hex92e8a75

154045045 has 32 divisors (see below), whose sum is σ = 237920256. Its totient is φ = 92923200.

The previous prime is 154045009. The next prime is 154045057. The reversal of 154045045 is 540540451.

154045045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 154045045 - 225 = 120490613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5482 + ... + 18388.

It is an arithmetic number, because the mean of its divisors is an integer number (7435008).

Almost surely, 2154045045 is an apocalyptic number.

It is an amenable number.

154045045 is a deficient number, since it is larger than the sum of its proper divisors (83875211).

154045045 is a wasteful number, since it uses less digits than its factorization.

154045045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12961.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 154045045 is about 12411.4884280653. The cubic root of 154045045 is about 536.0630970589.

Adding to 154045045 its reverse (540540451), we get a palindrome (694585496).

It can be divided in two parts, 15404 and 5045, that added together give a square (20449 = 1432).

The spelling of 154045045 in words is "one hundred fifty-four million, forty-five thousand, forty-five".

Divisors: 1 5 7 11 31 35 55 77 155 217 341 385 1085 1705 2387 11935 12907 64535 90349 141977 400117 451745 709885 993839 2000585 2800819 4401287 4969195 14004095 22006435 30809009 154045045