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2690643230 = 251197252169
BaseRepresentation
bin1010000001011111…
…1111010100011110
320221111220211121222
42200113333110132
521002301040410
61122553453342
7123451042622
oct24027772436
96844824558
102690643230
1111608860a0
12631111252
1333b58b8b2
141b74b9182
1510b337955
hexa05ff51e

2690643230 has 32 divisors (see below), whose sum is σ = 5337934560. Its totient is φ = 968325120.

The previous prime is 2690643217. The next prime is 2690643239. The reversal of 2690643230 is 323460962.

It is a super-2 number, since 2×26906432302 = 14479121982289665800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2690643239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115415 + ... + 136754.

It is an arithmetic number, because the mean of its divisors is an integer number (166810455).

Almost surely, 22690643230 is an apocalyptic number.

2690643230 is a deficient number, since it is larger than the sum of its proper divisors (2647291330).

2690643230 is a wasteful number, since it uses less digits than its factorization.

2690643230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252284.

The product of its (nonzero) digits is 46656, while the sum is 35.

The square root of 2690643230 is about 51871.4105264162. The cubic root of 2690643230 is about 1390.8662595377.

The spelling of 2690643230 in words is "two billion, six hundred ninety million, six hundred forty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 97 110 194 485 970 1067 2134 5335 10670 252169 504338 1260845 2521690 2773859 5547718 13869295 24460393 27738590 48920786 122301965 244603930 269064323 538128646 1345321615 2690643230