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312536930 = 2538818053
BaseRepresentation
bin10010101000001…
…110111101100010
3210210002112001212
4102220032331202
51120002140210
651002430122
710513343246
oct2250167542
9723075055
10312536930
11150467692
1288802342
134c99a2c4
142d718426
151c688805
hex12a0ef62

312536930 has 16 divisors (see below), whose sum is σ = 562781304. Its totient is φ = 124967040.

The previous prime is 312536927. The next prime is 312536951. The reversal of 312536930 is 39635213.

312536930 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 292991689 + 19545241 = 17117^2 + 4421^2 .

It is a super-2 number, since 2×3125369302 = 195358665227649800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34784 + ... + 42836.

Almost surely, 2312536930 is an apocalyptic number.

312536930 is a deficient number, since it is larger than the sum of its proper divisors (250244374).

312536930 is a wasteful number, since it uses less digits than its factorization.

312536930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11941.

The product of its (nonzero) digits is 14580, while the sum is 32.

The square root of 312536930 is about 17678.7140369428. The cubic root of 312536930 is about 678.6311346805.

It can be divided in two parts, 31253 and 6930, that added together give a palindrome (38183).

The spelling of 312536930 in words is "three hundred twelve million, five hundred thirty-six thousand, nine hundred thirty".

Divisors: 1 2 5 10 3881 7762 8053 16106 19405 38810 40265 80530 31253693 62507386 156268465 312536930