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155104415 = 5191162413
BaseRepresentation
bin10010011111010…
…11010010011111
3101210212010020222
421033223102133
5304201320130
623220231555
73562236314
oct1117532237
9353763228
10155104415
117a609274
1243b3b5bb
132619837b
1416856d0b
15d93bce5
hex93eb49f

155104415 has 8 divisors (see below), whose sum is σ = 187100928. Its totient is φ = 123433120.

The previous prime is 155104403. The next prime is 155104427. The reversal of 155104415 is 514401551.

It is an interprime number because it is at equal distance from previous prime (155104403) and next prime (155104427).

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

It is a de Polignac number, because none of the positive numbers 2k-155104415 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80252 + ... + 82161.

It is an arithmetic number, because the mean of its divisors is an integer number (23387616).

Almost surely, 2155104415 is an apocalyptic number.

155104415 is a deficient number, since it is larger than the sum of its proper divisors (31996513).

155104415 is a wasteful number, since it uses less digits than its factorization.

155104415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162609.

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

The square root of 155104415 is about 12454.0922993207. The cubic root of 155104415 is about 537.2891287478.

Adding to 155104415 its reverse (514401551), we get a palindrome (669505966).

The spelling of 155104415 in words is "one hundred fifty-five million, one hundred four thousand, four hundred fifteen".

Divisors: 1 5 191 955 162413 812065 31020883 155104415