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189614140 = 22543121997
BaseRepresentation
bin10110100110101…
…00100000111100
3111012210101200221
423103110200330
5342020123030
630452031124
74461456622
oct1323244074
9435711627
10189614140
1198039a01
12536024a4
133038bc21
141b27b512
15119a6e7a
hexb4d483c

189614140 has 24 divisors (see below), whose sum is σ = 399131712. Its totient is φ = 75666240.

The previous prime is 189614137. The next prime is 189614149. The reversal of 189614140 is 41416981.

It is a junction number, because it is equal to n+sod(n) for n = 189614096 and 189614105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189614149) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2379 + ... + 19618.

It is an arithmetic number, because the mean of its divisors is an integer number (16630488).

Almost surely, 2189614140 is an apocalyptic number.

189614140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189614140 is an abundant number, since it is smaller than the sum of its proper divisors (209517572).

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

189614140 is a wasteful number, since it uses less digits than its factorization.

189614140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22437 (or 22435 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 189614140 is about 13770.0450253440. The cubic root of 189614140 is about 574.5002740743.

The spelling of 189614140 in words is "one hundred eighty-nine million, six hundred fourteen thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 431 862 1724 2155 4310 8620 21997 43994 87988 109985 219970 439940 9480707 18961414 37922828 47403535 94807070 189614140