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690600030 = 235191637433
BaseRepresentation
bin101001001010011…
…011100001011110
31210010111010010220
4221022123201132
52403243200110
6152305542210
723054001111
oct5112334136
91703433126
10690600030
1132490a02a
12173344966
13b00ca993
1467a0c578
1540967370
hex2929b85e

690600030 has 64 divisors (see below), whose sum is σ = 1755613440. Its totient is φ = 173373696.

The previous prime is 690600019. The next prime is 690600041. The reversal of 690600030 is 30006096.

690600030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

690600030 is a nontrivial binomial coefficient, being equal to C(37165, 2).

It is an interprime number because it is at equal distance from previous prime (690600019) and next prime (690600041).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89194 + ... + 96626.

It is an arithmetic number, because the mean of its divisors is an integer number (27431460).

Almost surely, 2690600030 is an apocalyptic number.

690600030 is the 37164-th triangular number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690600030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (877806720).

690600030 is an abundant number, since it is smaller than the sum of its proper divisors (1065013410).

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

690600030 is a wasteful number, since it uses less digits than its factorization.

690600030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7625.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 690600030 is about 26279.2699670291. The cubic root of 690600030 is about 883.9116628899.

The spelling of 690600030 in words is "six hundred ninety million, six hundred thousand, thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 163 190 285 326 489 570 815 978 1630 2445 3097 4890 6194 7433 9291 14866 15485 18582 22299 30970 37165 44598 46455 74330 92910 111495 141227 222990 282454 423681 706135 847362 1211579 1412270 2118405 2423158 3634737 4236810 6057895 7269474 12115790 18173685 23020001 36347370 46040002 69060003 115100005 138120006 230200010 345300015 690600030