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318950970 = 23513817823
BaseRepresentation
bin10011000000101…
…100111000111010
3211020011101110220
4103000230320322
51123122412340
651352120510
710622016132
oct2300547072
9736141426
10318950970
11154048648
128a996136
13511048b0
1430507ac2
151d003ed0
hex1302ce3a

318950970 has 32 divisors (see below), whose sum is σ = 824366592. Its totient is φ = 78510912.

The previous prime is 318950969. The next prime is 318950981. The reversal of 318950970 is 79059813.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408522 + ... + 409301.

It is an arithmetic number, because the mean of its divisors is an integer number (25761456).

Almost surely, 2318950970 is an apocalyptic number.

318950970 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

318950970 is an abundant number, since it is smaller than the sum of its proper divisors (505415622).

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

318950970 is a wasteful number, since it uses less digits than its factorization.

318950970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817846.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 318950970 is about 17859.1984702562. The cubic root of 318950970 is about 683.2421370795.

The spelling of 318950970 in words is "three hundred eighteen million, nine hundred fifty thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 817823 1635646 2453469 4089115 4906938 8178230 10631699 12267345 21263398 24534690 31895097 53158495 63790194 106316990 159475485 318950970