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340982390 = 2575391909
BaseRepresentation
bin10100010100101…
…111101001110110
3212202121200220102
4110110233221312
51144242414030
653500234102
711310205520
oct2424575166
9782550812
10340982390
11165526131
129623b932
1355849838
1433400a10
151ee06c45
hex1452fa76

340982390 has 32 divisors (see below), whose sum is σ = 714692160. Its totient is φ = 114701184.

The previous prime is 340982381. The next prime is 340982401. The reversal of 340982390 is 93289043.

It is a super-2 number, since 2×3409823902 = 232537980580224200, which contains 22 as substring.

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, 42245 + ... + 49664.

It is an arithmetic number, because the mean of its divisors is an integer number (22334130).

Almost surely, 2340982390 is an apocalyptic number.

340982390 is an abundant number, since it is smaller than the sum of its proper divisors (373709770).

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

340982390 is a wasteful number, since it uses less digits than its factorization.

340982390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91976.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 340982390 is about 18465.7084889803. The cubic root of 340982390 is about 698.6247761876.

The spelling of 340982390 in words is "three hundred forty million, nine hundred eighty-two thousand, three hundred ninety".

Divisors: 1 2 5 7 10 14 35 53 70 106 265 371 530 742 1855 3710 91909 183818 459545 643363 919090 1286726 3216815 4871177 6433630 9742354 24355885 34098239 48711770 68196478 170491195 340982390