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981000230 = 25734740387
BaseRepresentation
bin111010011110001…
…110000000100110
32112100220222022212
4322132032000212
54002114001410
6241202123422
733211235660
oct7236160046
92470828285
10981000230
11463826aa1
12234650572
13128317112
1494403530
155b1cbb05
hex3a78e026

981000230 has 32 divisors (see below), whose sum is σ = 2023923456. Its totient is φ = 335365344.

The previous prime is 981000211. The next prime is 981000259. The reversal of 981000230 is 32000189.

It is a super-2 number, since 2×9810002302 = 1924722902520105800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 981000196 and 981000205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4097 + ... + 44483.

It is an arithmetic number, because the mean of its divisors is an integer number (63247608).

Almost surely, 2981000230 is an apocalyptic number.

981000230 is an abundant number, since it is smaller than the sum of its proper divisors (1042923226).

981000230 is a wasteful number, since it uses less digits than its factorization.

981000230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40748.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 981000230 is about 31320.9231983989. The cubic root of 981000230 is about 993.6262043751.

The spelling of 981000230 in words is "nine hundred eighty-one million, two hundred thirty", and thus it is an aban number.

Divisors: 1 2 5 7 10 14 35 70 347 694 1735 2429 3470 4858 12145 24290 40387 80774 201935 282709 403870 565418 1413545 2827090 14014289 28028578 70071445 98100023 140142890 196200046 490500115 981000230