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189030018750 = 235510081601
BaseRepresentation
bin1011000000001100010…
…0010010111010111110
3200001220211022220020120
42300003010102322332
511044113141100000
6222501133155410
716441224435246
oct2600304227276
9601824286216
10189030018750
11731925769a1
123077592bb66
1314a966a5201
1492131c6b26
154db53646a0
hex2c03112ebe

189030018750 has 48 divisors (see below), whose sum is σ = 472544848944. Its totient is φ = 50408000000.

The previous prime is 189030018743. The next prime is 189030018763. The reversal of 189030018750 is 57810030981.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5022051 + ... + 5059550.

It is an arithmetic number, because the mean of its divisors is an integer number (9844684353).

Almost surely, 2189030018750 is an apocalyptic number.

189030018750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189030018750 is an abundant number, since it is smaller than the sum of its proper divisors (283514830194).

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

189030018750 is an equidigital number, since it uses as much as digits as its factorization.

189030018750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10081631 (or 10081611 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 42.

The spelling of 189030018750 in words is "one hundred eighty-nine billion, thirty million, eighteen thousand, seven hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 125 150 250 375 625 750 1250 1875 3125 3750 6250 9375 18750 10081601 20163202 30244803 50408005 60489606 100816010 151224015 252040025 302448030 504080050 756120075 1260200125 1512240150 2520400250 3780600375 6301000625 7561200750 12602001250 18903001875 31505003125 37806003750 63010006250 94515009375 189030018750