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690800430 = 23536762743
BaseRepresentation
bin101001001011001…
…100011100101110
31210010212022001010
4221023030130232
52403321103210
6152314130050
723055464265
oct5113143456
91703768033
10690800430
11324a36651
12173420926
13b016ac68
1467a615dc
15409a6920
hex292cc72e

690800430 has 32 divisors (see below), whose sum is σ = 1662465024. Its totient is φ = 183708576.

The previous prime is 690800413. The next prime is 690800447. The reversal of 690800430 is 34008096.

690800430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (690800413) and next prime (690800447).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 20362 + ... + 42381.

It is an arithmetic number, because the mean of its divisors is an integer number (51952032).

Almost surely, 2690800430 is an apocalyptic number.

690800430 is an abundant number, since it is smaller than the sum of its proper divisors (971664594).

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

690800430 is a wasteful number, since it uses less digits than its factorization.

690800430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63120.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 690800430 is about 26283.0825817673. The cubic root of 690800430 is about 883.9971531681.

The spelling of 690800430 in words is "six hundred ninety million, eight hundred thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 367 734 1101 1835 2202 3670 5505 11010 62743 125486 188229 313715 376458 627430 941145 1882290 23026681 46053362 69080043 115133405 138160086 230266810 345400215 690800430