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312030108 = 223213251287
BaseRepresentation
bin10010100110010…
…011001110011100
3210202010202211200
4102212103032130
51114334430413
650543515500
710506132525
oct2246231634
9722122750
10312030108
11150150925
12885b8b90
134c850700
142d62584c
151c5d8573
hex1299339c

312030108 has 54 divisors (see below), whose sum is σ = 854099064. Its totient is φ = 96007392.

The previous prime is 312030071. The next prime is 312030143. The reversal of 312030108 is 801030213.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19560 + ... + 31727.

Almost surely, 2312030108 is an apocalyptic number.

It is an amenable number.

312030108 is an abundant number, since it is smaller than the sum of its proper divisors (542068956).

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

312030108 is a wasteful number, since it uses less digits than its factorization.

312030108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51323 (or 51305 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 312030108 is about 17664.3739770194. The cubic root of 312030108 is about 678.2641046947.

The spelling of 312030108 in words is "three hundred twelve million, thirty thousand, one hundred eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 169 234 338 468 507 676 1014 1521 2028 3042 6084 51287 102574 153861 205148 307722 461583 615444 666731 923166 1333462 1846332 2000193 2666924 4000386 6000579 8000772 8667503 12001158 17335006 24002316 26002509 34670012 52005018 78007527 104010036 156015054 312030108