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1064768380 = 225134095263
BaseRepresentation
bin111111011101110…
…001001101111100
32202012112211121221
4333131301031330
54140040042010
6253353403124
735246244664
oct7735611574
92665484557
101064768380
114a7041275
122587094a4
1313c796680
14a15ab1a4
1563726dda
hex3f77137c

1064768380 has 24 divisors (see below), whose sum is σ = 2408015232. Its totient is φ = 393145152.

The previous prime is 1064768363. The next prime is 1064768423. The reversal of 1064768380 is 838674601.

It is a super-2 number, since 2×10647683802 = 2267463406095648800, 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 7 ways as a sum of consecutive naturals, for example, 2047372 + ... + 2047891.

It is an arithmetic number, because the mean of its divisors is an integer number (100333968).

Almost surely, 21064768380 is an apocalyptic number.

1064768380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1064768380 is an abundant number, since it is smaller than the sum of its proper divisors (1343246852).

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

1064768380 is a wasteful number, since it uses less digits than its factorization.

1064768380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4095285 (or 4095283 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 1064768380 is about 32630.7888350864. The cubic root of 1064768380 is about 1021.1394353720.

The spelling of 1064768380 in words is "one billion, sixty-four million, seven hundred sixty-eight thousand, three hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 4095263 8190526 16381052 20476315 40952630 53238419 81905260 106476838 212953676 266192095 532384190 1064768380