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1380469850 = 25243642079
BaseRepresentation
bin101001001001000…
…0100110001011010
310120012121010121222
41102102010301122
510311400013400
6344552132042
746131541304
oct12222046132
93505533558
101380469850
1164926a481
12326397022
13190001186
14d14aa974
15812d8185
hex52484c5a

1380469850 has 24 divisors (see below), whose sum is σ = 2627391360. Its totient is φ = 539345520.

The previous prime is 1380469847. The next prime is 1380469873. The reversal of 1380469850 is 589640831.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 318890 + ... + 323189.

It is an arithmetic number, because the mean of its divisors is an integer number (109474640).

Almost surely, 21380469850 is an apocalyptic number.

1380469850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1380469850 is a deficient number, since it is larger than the sum of its proper divisors (1246921510).

1380469850 is a wasteful number, since it uses less digits than its factorization.

1380469850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642134 (or 642129 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 1380469850 is about 37154.6746722401. The cubic root of 1380469850 is about 1113.4626200949.

The spelling of 1380469850 in words is "one billion, three hundred eighty million, four hundred sixty-nine thousand, eight hundred fifty".

Divisors: 1 2 5 10 25 43 50 86 215 430 1075 2150 642079 1284158 3210395 6420790 16051975 27609397 32103950 55218794 138046985 276093970 690234925 1380469850