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830291492 = 221741297809
BaseRepresentation
bin110001011111010…
…011111000100100
32010212100011210202
4301133103320210
53200023311432
6214220010032
726401234622
oct6137237044
92125304722
10830291492
11396750318
121b2090918
1310302a754
147c3b2512
154cd5c462
hex317d3e24

830291492 has 24 divisors (see below), whose sum is σ = 1576010520. Its totient is φ = 381194240.

The previous prime is 830291491. The next prime is 830291531. The reversal of 830291492 is 294192038.

It can be written as a sum of positive squares in 4 ways, for example, as 264517696 + 565773796 = 16264^2 + 23786^2 .

It is not an unprimeable number, because it can be changed into a prime (830291491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146117 + ... + 151692.

It is an arithmetic number, because the mean of its divisors is an integer number (65667105).

Almost surely, 2830291492 is an apocalyptic number.

830291492 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

830291492 is a deficient number, since it is larger than the sum of its proper divisors (745719028).

830291492 is a wasteful number, since it uses less digits than its factorization.

830291492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297871 (or 297869 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 830291492 is about 28814.7790552001. The cubic root of 830291492 is about 939.8896399787.

The spelling of 830291492 in words is "eight hundred thirty million, two hundred ninety-one thousand, four hundred ninety-two".

Divisors: 1 2 4 17 34 41 68 82 164 697 1394 2788 297809 595618 1191236 5062753 10125506 12210169 20251012 24420338 48840676 207572873 415145746 830291492