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1988336130 = 23511219127227
BaseRepresentation
bin111011010000011…
…1001101000000010
312010120101221101220
41312200321220002
513033003224010
6525144535510
7100162402224
oct16640715002
95116357356
101988336130
11930400400
12475a81596
13258c22371
1414c100414
15b985b970
hex76839a02

1988336130 has 192 divisors, whose sum is σ = 5589319680. Its totient is φ = 451059840.

The previous prime is 1988336107. The next prime is 1988336143. The reversal of 1988336130 is 316338891.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 8759077 + ... + 8759303.

It is an arithmetic number, because the mean of its divisors is an integer number (29111040).

Almost surely, 21988336130 is an apocalyptic number.

1988336130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1988336130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2794659840).

1988336130 is an abundant number, since it is smaller than the sum of its proper divisors (3600983550).

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

1988336130 is a wasteful number, since it uses less digits than its factorization.

1988336130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 1988336130 is about 44590.7628326765. The cubic root of 1988336130 is about 1257.4670138786.

The spelling of 1988336130 in words is "one billion, nine hundred eighty-eight million, three hundred thirty-six thousand, one hundred thirty".