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690152813 = 7105193809
BaseRepresentation
bin101001001000101…
…110010101101101
31210002122101200022
4221020232111231
52403134342223
6152252211525
723050126220
oct5110562555
91702571608
10690152813
11324634029
12173169ba5
13acca225c
14679335b7
15408c9ac8
hex2922e56d

690152813 has 8 divisors (see below), whose sum is σ = 789504960. Its totient is φ = 590990400.

The previous prime is 690152809. The next prime is 690152821. The reversal of 690152813 is 318251096.

690152813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 690152813 - 22 = 690152809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690152843) 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, 39548 + ... + 54261.

It is an arithmetic number, because the mean of its divisors is an integer number (98688120).

Almost surely, 2690152813 is an apocalyptic number.

It is an amenable number.

690152813 is a deficient number, since it is larger than the sum of its proper divisors (99352147).

690152813 is a wasteful number, since it uses less digits than its factorization.

690152813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94867.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 690152813 is about 26270.7596578401. The cubic root of 690152813 is about 883.7208212716.

The spelling of 690152813 in words is "six hundred ninety million, one hundred fifty-two thousand, eight hundred thirteen".

Divisors: 1 7 1051 7357 93809 656663 98593259 690152813