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315055130 = 251329193433
BaseRepresentation
bin10010110001110…
…101110000011010
3210221211110101112
4102301311300122
51121123231010
651132420322
710543632035
oct2261656032
9727743345
10315055130
11151927645
12896176a2
135036c570
142dbb201c
151c9d4a05
hex12c75c1a

315055130 has 64 divisors (see below), whose sum is σ = 636521760. Its totient is φ = 111476736.

The previous prime is 315055063. The next prime is 315055141. The reversal of 315055130 is 31550513.

It can be written as a sum of positive squares in 16 ways, for example, as 14830201 + 300224929 = 3851^2 + 17327^2 .

It is a junction number, because it is equal to n+sod(n) for n = 315055096 and 315055105.

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, 727394 + ... + 727826.

Almost surely, 2315055130 is an apocalyptic number.

315055130 is an abundant number, since it is smaller than the sum of its proper divisors (321466630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315055130 is a wasteful number, since it uses less digits than its factorization.

315055130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 315055130 is about 17749.7923931521. The cubic root of 315055130 is about 680.4489034173.

The spelling of 315055130 in words is "three hundred fifteen million, fifty-five thousand, one hundred thirty".

Divisors: 1 2 5 10 13 26 29 58 65 130 145 193 290 377 386 433 754 866 965 1885 1930 2165 2509 3770 4330 5018 5597 5629 11194 11258 12545 12557 25090 25114 27985 28145 55970 56290 62785 72761 83569 125570 145522 163241 167138 326482 363805 417845 727610 816205 835690 1086397 1632410 2172794 2423501 4847002 5431985 10863970 12117505 24235010 31505513 63011026 157527565 315055130