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1992130 = 257149191
BaseRepresentation
bin111100110010111000010
310202012200121
413212113002
51002222010
6110410454
722634650
oct7462702
93665617
101992130
111140798
12800a2a
1354999a
1439bdd0
152953da
hex1e65c2

1992130 has 32 divisors (see below), whose sum is σ = 4147200. Its totient is φ = 674880.

The previous prime is 1992119. The next prime is 1992139. The reversal of 1992130 is 312991.

It is a junction number, because it is equal to n+sod(n) for n = 1992095 and 1992104.

It is not an unprimeable number, because it can be changed into a prime (1992139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10335 + ... + 10525.

It is an arithmetic number, because the mean of its divisors is an integer number (129600).

21992130 is an apocalyptic number.

1992130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1992130 is an abundant number, since it is smaller than the sum of its proper divisors (2155070).

1992130 is a wasteful number, since it uses less digits than its factorization.

1992130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 1992130 is about 1411.4283545402. The cubic root of 1992130 is about 125.8266281044.

The spelling of 1992130 in words is "one million, nine hundred ninety-two thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 149 191 298 382 745 955 1043 1337 1490 1910 2086 2674 5215 6685 10430 13370 28459 56918 142295 199213 284590 398426 996065 1992130