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7669040 = 245175639
BaseRepresentation
bin11101010000010100110000
3112102121221112
4131100110300
53430402130
6432212452
7122120501
oct35202460
915377845
107669040
114368955
12269a128
1317868c2
141038ba8
15a17495
hex750530

7669040 has 40 divisors (see below), whose sum is σ = 18882720. Its totient is φ = 2886656.

The previous prime is 7669033. The next prime is 7669043. The reversal of 7669040 is 409667.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 7668988 and 7669006.

It is not an unprimeable number, because it can be changed into a prime (7669043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1460 + ... + 4179.

It is an arithmetic number, because the mean of its divisors is an integer number (472068).

Almost surely, 27669040 is an apocalyptic number.

It is an amenable number.

7669040 is an abundant number, since it is smaller than the sum of its proper divisors (11213680).

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

7669040 is a wasteful number, since it uses less digits than its factorization.

7669040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5669 (or 5663 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 7669040 is about 2769.3031614469. The cubic root of 7669040 is about 197.2030681950.

The spelling of 7669040 in words is "seven million, six hundred sixty-nine thousand, forty".

Divisors: 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 272 340 680 1360 5639 11278 22556 28195 45112 56390 90224 95863 112780 191726 225560 383452 451120 479315 766904 958630 1533808 1917260 3834520 7669040