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206703030 = 2356890101
BaseRepresentation
bin11000101001000…
…00100110110110
3112101221121020210
430110200212312
5410403444110
632302210250
75056642512
oct1424404666
9471847223
10206703030
11a6751056
1259283986
1333a932b1
141d649142
1513230520
hexc5209b6

206703030 has 16 divisors (see below), whose sum is σ = 496087344. Its totient is φ = 55120800.

The previous prime is 206703011. The next prime is 206703031. The reversal of 206703030 is 30307602.

It is a super-2 number, since 2×2067030302 = 85452285222361800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 206702988 and 206703006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206703031) 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, 3445021 + ... + 3445080.

It is an arithmetic number, because the mean of its divisors is an integer number (31005459).

Almost surely, 2206703030 is an apocalyptic number.

206703030 is an abundant number, since it is smaller than the sum of its proper divisors (289384314).

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

206703030 is a wasteful number, since it uses less digits than its factorization.

206703030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6890111.

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 206703030 is about 14377.1704448407. The cubic root of 206703030 is about 591.2651488177.

The spelling of 206703030 in words is "two hundred six million, seven hundred three thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 6890101 13780202 20670303 34450505 41340606 68901010 103351515 206703030