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1068106520 = 235138092539
BaseRepresentation
bin111111101010100…
…000001100011000
32202102211102200202
4333222200030120
54141413402040
6253553121332
735316520115
oct7752401430
92672742622
101068106520
114a8a11268
12259859248
13140394bc0
14a1bd990c
1563b86015
hex3faa0318

1068106520 has 64 divisors (see below), whose sum is σ = 2592324000. Its totient is φ = 393735168.

The previous prime is 1068106513. The next prime is 1068106531. The reversal of 1068106520 is 256018601.

It is a happy number.

It is a super-2 number, since 2×10681065202 = 2281703076133020800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419411 + ... + 421949.

Almost surely, 21068106520 is an apocalyptic number.

1068106520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1068106520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1296162000).

1068106520 is an abundant number, since it is smaller than the sum of its proper divisors (1524217480).

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

1068106520 is a wasteful number, since it uses less digits than its factorization.

1068106520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3372 (or 3368 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1068106520 is about 32681.8989656354. The cubic root of 1068106520 is about 1022.2054419811.

The spelling of 1068106520 in words is "one billion, sixty-eight million, one hundred six thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 809 1618 2539 3236 4045 5078 6472 8090 10156 10517 12695 16180 20312 21034 25390 32360 33007 42068 50780 52585 66014 84136 101560 105170 132028 165035 210340 264056 330070 420680 660140 1320280 2054051 4108102 8216204 10270255 16432408 20540510 26702663 41081020 53405326 82162040 106810652 133513315 213621304 267026630 534053260 1068106520