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154414121 = 1916095051
BaseRepresentation
bin10010011010000…
…10110000101001
3101202120001100112
421031002300221
5304012222441
623153344105
73553332641
oct1115026051
9352501315
10154414121
117a187684
1243868035
1325cb6104
1416717521
15d8524eb
hex9342c29

154414121 has 8 divisors (see below), whose sum is σ = 162674400. Its totient is φ = 146167200.

The previous prime is 154414109. The next prime is 154414133. The reversal of 154414121 is 121414451.

It is an interprime number because it is at equal distance from previous prime (154414109) and next prime (154414133).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-154414121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154414321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28046 + ... + 33096.

It is an arithmetic number, because the mean of its divisors is an integer number (20334300).

Almost surely, 2154414121 is an apocalyptic number.

It is an amenable number.

154414121 is a deficient number, since it is larger than the sum of its proper divisors (8260279).

154414121 is a wasteful number, since it uses less digits than its factorization.

154414121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6679.

The product of its digits is 640, while the sum is 23.

The square root of 154414121 is about 12426.3478544583. The cubic root of 154414121 is about 536.4908728561.

Adding to 154414121 its reverse (121414451), we get a palindrome (275828572).

The spelling of 154414121 in words is "one hundred fifty-four million, four hundred fourteen thousand, one hundred twenty-one".

Divisors: 1 19 1609 5051 30571 95969 8127059 154414121