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1893122980 = 225713522307
BaseRepresentation
bin111000011010110…
…1100001110100100
311212221020121111221
41300311230032210
512334114413410
6511504110124
764625164660
oct16065541644
94787217457
101893122980
11891689351
1244a005344
13242296618
1413d5d78a0
15b13004da
hex70d6c3a4

1893122980 has 24 divisors (see below), whose sum is σ = 4543495488. Its totient is φ = 649070688.

The previous prime is 1893122963. The next prime is 1893122993. The reversal of 1893122980 is 892213981.

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, 6761014 + ... + 6761293.

It is an arithmetic number, because the mean of its divisors is an integer number (189312312).

Almost surely, 21893122980 is an apocalyptic number.

1893122980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1893122980 is an abundant number, since it is smaller than the sum of its proper divisors (2650372508).

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

1893122980 is a wasteful number, since it uses less digits than its factorization.

1893122980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13522323 (or 13522321 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 1893122980 is about 43510.0330958274. The cubic root of 1893122980 is about 1237.0662041762.

The spelling of 1893122980 in words is "one billion, eight hundred ninety-three million, one hundred twenty-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 13522307 27044614 54089228 67611535 94656149 135223070 189312298 270446140 378624596 473280745 946561490 1893122980