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830491830 = 232571318241
BaseRepresentation
bin110001100000000…
…100110010110110
32010212201100121200
4301200010302312
53200101214310
6214224153330
726403030660
oct6140046266
92125640550
10830491830
11396877893
121b2168846
1310309a9ac
147c425530
154cd9b9c0
hex31804cb6

830491830 has 48 divisors (see below), whose sum is σ = 2467749024. Its totient is φ = 189826560.

The previous prime is 830491817. The next prime is 830491853. The reversal of 830491830 is 38194038.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 658491 + ... + 659750.

It is an arithmetic number, because the mean of its divisors is an integer number (51411438).

Almost surely, 2830491830 is an apocalyptic number.

830491830 is an abundant number, since it is smaller than the sum of its proper divisors (1637257194).

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

830491830 is a wasteful number, since it uses less digits than its factorization.

830491830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318261 (or 1318258 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 830491830 is about 28818.2551518998. The cubic root of 830491830 is about 939.9652280785.

The spelling of 830491830 in words is "eight hundred thirty million, four hundred ninety-one thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 630 1318241 2636482 3954723 6591205 7909446 9227687 11864169 13182410 18455374 19773615 23728338 27683061 39547230 46138435 55366122 59320845 83049183 92276870 118641690 138415305 166098366 276830610 415245915 830491830