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6945030320 = 245233774473
BaseRepresentation
bin1100111011111010…
…01100000010110000
3122221000022002120012
412131331030002300
5103210411432240
63105052034052
7334050532544
oct63575140260
918830262505
106945030320
112a4431a088
121419a62928
13868aca7c7
1449c52ba24
152a9aabb65
hex19df4c0b0

6945030320 has 40 divisors (see below), whose sum is σ = 16849251936. Its totient is φ = 2657228288.

The previous prime is 6945030307. The next prime is 6945030329. The reversal of 6945030320 is 230305496.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×69450303202 = 96466892291438604800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6945030329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1885397 + ... + 1889076.

Almost surely, 26945030320 is an apocalyptic number.

It is an amenable number.

6945030320 is an abundant number, since it is smaller than the sum of its proper divisors (9904221616).

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

6945030320 is a wasteful number, since it uses less digits than its factorization.

6945030320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3774509 (or 3774503 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 6945030320 is about 83336.8485125278. The cubic root of 6945030320 is about 1907.9107222209.

The spelling of 6945030320 in words is "six billion, nine hundred forty-five million, thirty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 23 40 46 80 92 115 184 230 368 460 920 1840 3774473 7548946 15097892 18872365 30195784 37744730 60391568 75489460 86812879 150978920 173625758 301957840 347251516 434064395 694503032 868128790 1389006064 1736257580 3472515160 6945030320