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154072154 = 2109706753
BaseRepresentation
bin10010010111011…
…11010001011010
3101201220200021002
421023233101122
5303420302104
623142145002
73550406645
oct1113572132
9351820232
10154072154
1179a73765
1243722162
1325bc6572
1416668a5c
15d7d601e
hex92ef45a

154072154 has 8 divisors (see below), whose sum is σ = 233228820. Its totient is φ = 76329216.

The previous prime is 154072151. The next prime is 154072169. The reversal of 154072154 is 451270451.

It can be written as a sum of positive squares in 2 ways, for example, as 153388225 + 683929 = 12385^2 + 827^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (154072151) 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, 353159 + ... + 353594.

Almost surely, 2154072154 is an apocalyptic number.

154072154 is a deficient number, since it is larger than the sum of its proper divisors (79156666).

154072154 is a wasteful number, since it uses less digits than its factorization.

154072154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706864.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 154072154 is about 12412.5804730523. The cubic root of 154072154 is about 536.0945408532.

The spelling of 154072154 in words is "one hundred fifty-four million, seventy-two thousand, one hundred fifty-four".

Divisors: 1 2 109 218 706753 1413506 77036077 154072154