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1351344830 = 251141973089
BaseRepresentation
bin101000010001011…
…1110001010111110
310111011210102121112
41100202332022332
510231421013310
6342032002022
745326145563
oct12042761276
93434712545
101351344830
11633887410
12318690312
13186c74534
14cb68886a
157d983705
hex508be2be

1351344830 has 64 divisors (see below), whose sum is σ = 2747183040. Its totient is φ = 474316800.

The previous prime is 1351344823. The next prime is 1351344833. The reversal of 1351344830 is 384431531.

It is a super-2 number, since 2×13513448302 = 3652265699135457800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351344833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 435926 + ... + 439014.

It is an arithmetic number, because the mean of its divisors is an integer number (42924735).

Almost surely, 21351344830 is an apocalyptic number.

1351344830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1351344830 is an abundant number, since it is smaller than the sum of its proper divisors (1395838210).

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

1351344830 is a wasteful number, since it uses less digits than its factorization.

1351344830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3245.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1351344830 is about 36760.6424046153. The cubic root of 1351344830 is about 1105.5763200995.

The spelling of 1351344830 in words is "one billion, three hundred fifty-one million, three hundred forty-four thousand, eight hundred thirty".

Divisors: 1 2 5 10 11 22 41 55 82 97 110 194 205 410 451 485 902 970 1067 2134 2255 3089 3977 4510 5335 6178 7954 10670 15445 19885 30890 33979 39770 43747 67958 87494 126649 169895 218735 253298 299633 339790 437470 599266 633245 1266490 1393139 1498165 2786278 2996330 3295963 6591926 6965695 12284953 13931390 16479815 24569906 32959630 61424765 122849530 135134483 270268966 675672415 1351344830