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227185858040 = 2355679646451
BaseRepresentation
bin1101001110010101010…
…1010001010111111000
3210201101222021100211112
43103211111101113320
512210234034424130
6252211233215452
722261606634231
oct3234525212770
9721358240745
10227185858040
1188392548779
1238044101588
13185676750cb
14add28a4088
155d99ebd495
hex34e55515f8

227185858040 has 16 divisors (see below), whose sum is σ = 511168180680. Its totient is φ = 90874343200.

The previous prime is 227185858001. The next prime is 227185858057. The reversal of 227185858040 is 40858581722.

It is a super-2 number, since 2×2271858580402 (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 227185858040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2839823186 + ... + 2839823265.

Almost surely, 2227185858040 is an apocalyptic number.

227185858040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227185858040 is an abundant number, since it is smaller than the sum of its proper divisors (283982322640).

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

227185858040 is a wasteful number, since it uses less digits than its factorization.

227185858040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5679646462 (or 5679646458 counting only the distinct ones).

The product of its (nonzero) digits is 1433600, while the sum is 50.

The spelling of 227185858040 in words is "two hundred twenty-seven billion, one hundred eighty-five million, eight hundred fifty-eight thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 5679646451 11359292902 22718585804 28398232255 45437171608 56796464510 113592929020 227185858040