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18892852940 = 22513238330493
BaseRepresentation
bin10001100110000110…
…100000111011001100
31210202200020101000002
4101212012200323030
5302143032243230
612402415223432
71236116412623
oct214606407314
953680211002
1018892852940
118015583055
1237b3217b78
131a211c3b30
14cb32466ba
15758972545
hex4661a0ecc

18892852940 has 48 divisors (see below), whose sum is σ = 42746245248. Its totient is φ = 6972666624.

The previous prime is 18892852921. The next prime is 18892852967. The reversal of 18892852940 is 4925829881.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 604334 + ... + 634826.

It is an arithmetic number, because the mean of its divisors is an integer number (890546776).

Almost surely, 218892852940 is an apocalyptic number.

18892852940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18892852940 is an abundant number, since it is smaller than the sum of its proper divisors (23853392308).

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

18892852940 is a wasteful number, since it uses less digits than its factorization.

18892852940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32898 (or 32896 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 56.

The spelling of 18892852940 in words is "eighteen billion, eight hundred ninety-two million, eight hundred fifty-two thousand, nine hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 2383 4766 9532 11915 23830 30493 30979 47660 60986 61958 121972 123916 152465 154895 304930 309790 396409 609860 619580 792818 1585636 1982045 3964090 7928180 72664819 145329638 290659276 363324095 726648190 944642647 1453296380 1889285294 3778570588 4723213235 9446426470 18892852940