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154423053 = 32171009301
BaseRepresentation
bin10010011010001…
…00111100001101
3101202120111121100
421031010330031
5304013014203
623153453313
73553400661
oct1115047415
9352514540
10154423053
117a193364
1243871239
1325cba1b5
141671a8a1
15d854ea3
hex9344f0d

154423053 has 12 divisors (see below), whose sum is σ = 236176668. Its totient is φ = 96892800.

The previous prime is 154423039. The next prime is 154423067. The reversal of 154423053 is 350324451.

It is an interprime number because it is at equal distance from previous prime (154423039) and next prime (154423067).

It can be written as a sum of positive squares in 2 ways, for example, as 47858724 + 106564329 = 6918^2 + 10323^2 .

It is not a de Polignac number, because 154423053 - 25 = 154423021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154423033) 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 11 ways as a sum of consecutive naturals, for example, 504498 + ... + 504803.

It is an arithmetic number, because the mean of its divisors is an integer number (19681389).

Almost surely, 2154423053 is an apocalyptic number.

It is an amenable number.

154423053 is a deficient number, since it is larger than the sum of its proper divisors (81753615).

154423053 is a wasteful number, since it uses less digits than its factorization.

154423053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009324 (or 1009321 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 154423053 is about 12426.7072468937. The cubic root of 154423053 is about 536.5012169966.

The spelling of 154423053 in words is "one hundred fifty-four million, four hundred twenty-three thousand, fifty-three".

Divisors: 1 3 9 17 51 153 1009301 3027903 9083709 17158117 51474351 154423053