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60990006 = 23721118859
BaseRepresentation
bin1110100010101…
…0001000110110
311020202121120010
43220222020312
5111103140011
610015121050
71340256300
oct350521066
9136677503
1060990006
1131477770
1218513186
13c83577c
148158970
15554b1a6
hex3a2a236

60990006 has 48 divisors (see below), whose sum is σ = 154802880. Its totient is φ = 15840720.

The previous prime is 60989993. The next prime is 60990029. The reversal of 60990006 is 60009906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6196 + ... + 12663.

It is an arithmetic number, because the mean of its divisors is an integer number (3225060).

Almost surely, 260990006 is an apocalyptic number.

60990006 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

60990006 is an abundant number, since it is smaller than the sum of its proper divisors (93812874).

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

60990006 is a wasteful number, since it uses less digits than its factorization.

60990006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18889 (or 18882 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 60990006 is about 7809.6098494099. The cubic root of 60990006 is about 393.6282191290.

Subtracting from 60990006 its reverse (60009906), we obtain a square (980100 = 9902).

The spelling of 60990006 in words is "sixty million, nine hundred ninety thousand, six".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 49 66 77 98 147 154 231 294 462 539 1078 1617 3234 18859 37718 56577 113154 132013 207449 264026 396039 414898 622347 792078 924091 1244694 1452143 1848182 2772273 2904286 4356429 5544546 8712858 10165001 20330002 30495003 60990006