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315112055 = 51931671597
BaseRepresentation
bin10010110010000…
…011101001110111
3210221221100110212
4102302003221313
51121132041210
651133540035
710544260016
oct2262035167
9727840425
10315112055
11151966395
128964461b
135038c44b
142dbc8a7d
151c9e6805
hex12c83a77

315112055 has 32 divisors (see below), whose sum is σ = 417269760. Its totient is φ = 227525760.

The previous prime is 315112043. The next prime is 315112067. The reversal of 315112055 is 550211513.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (315112043) and next prime (315112067).

It is not a de Polignac number, because 315112055 - 212 = 315107959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315112055.

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, 196517 + ... + 198113.

It is an arithmetic number, because the mean of its divisors is an integer number (13039680).

Almost surely, 2315112055 is an apocalyptic number.

315112055 is a deficient number, since it is larger than the sum of its proper divisors (102157705).

315112055 is a wasteful number, since it uses less digits than its factorization.

315112055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 315112055 is about 17751.3958606077. The cubic root of 315112055 is about 680.4898827227.

Adding to 315112055 its reverse (550211513), we get a palindrome (865323568).

The spelling of 315112055 in words is "three hundred fifteen million, one hundred twelve thousand, fifty-five".

Divisors: 1 5 19 31 67 95 155 335 589 1273 1597 2077 2945 6365 7985 10385 30343 39463 49507 106999 151715 197315 247535 534995 940633 2032981 3316969 4703165 10164905 16584845 63022411 315112055