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189048020 = 22571350343
BaseRepresentation
bin10110100010010…
…10010011010100
3111011201122010112
423101022103110
5341344014040
630431542152
74453611260
oct1321122324
9434648115
10189048020
1197792637
125338a958
1330221345
141b1710a0
15118e4365
hexb44a4d4

189048020 has 24 divisors (see below), whose sum is σ = 453715584. Its totient is φ = 64816416.

The previous prime is 189048001. The next prime is 189048037. The reversal of 189048020 is 20840981.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 675032 + ... + 675311.

It is an arithmetic number, because the mean of its divisors is an integer number (18904816).

Almost surely, 2189048020 is an apocalyptic number.

189048020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189048020 is an abundant number, since it is smaller than the sum of its proper divisors (264667564).

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

189048020 is a wasteful number, since it uses less digits than its factorization.

189048020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350359 (or 1350357 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 189048020 is about 13749.4734444632. The cubic root of 189048020 is about 573.9279533380.

The spelling of 189048020 in words is "one hundred eighty-nine million, forty-eight thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1350343 2700686 5401372 6751715 9452401 13503430 18904802 27006860 37809604 47262005 94524010 189048020