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830123572 = 22277749209
BaseRepresentation
bin110001011110101…
…010111000110100
32010212000122110111
4301132222320310
53200002423242
6214212232404
726366635225
oct6136527064
92125018414
10830123572
11396646143
121b200b704
13102c9c1a5
147c36b24c
154cd27817
hex317aae34

830123572 has 12 divisors (see below), whose sum is σ = 1457962660. Its totient is φ = 413562816.

The previous prime is 830123533. The next prime is 830123603. The reversal of 830123572 is 275321038.

It can be written as a sum of positive squares in 2 ways, for example, as 371564176 + 458559396 = 19276^2 + 21414^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373497 + ... + 375712.

Almost surely, 2830123572 is an apocalyptic number.

It is an amenable number.

830123572 is a deficient number, since it is larger than the sum of its proper divisors (627839088).

830123572 is a wasteful number, since it uses less digits than its factorization.

830123572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749490 (or 749488 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 830123572 is about 28811.8651253264. The cubic root of 830123572 is about 939.8262739156.

The spelling of 830123572 in words is "eight hundred thirty million, one hundred twenty-three thousand, five hundred seventy-two".

Divisors: 1 2 4 277 554 1108 749209 1498418 2996836 207530893 415061786 830123572