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290107438 = 2700120719
BaseRepresentation
bin10001010010101…
…011000000101110
3202012212222120221
4101102223000232
51043231414223
644442001554
710121605165
oct2122530056
9665788527
10290107438
11139838015
12811a62ba
134814610a
142a75a3dc
151a707b5d
hex114ab02e

290107438 has 8 divisors (see below), whose sum is σ = 435244320. Its totient is φ = 145026000.

The previous prime is 290107429. The next prime is 290107457. The reversal of 290107438 is 834701092.

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

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3643 + ... + 24361.

It is an arithmetic number, because the mean of its divisors is an integer number (54405540).

Almost surely, 2290107438 is an apocalyptic number.

290107438 is a deficient number, since it is larger than the sum of its proper divisors (145136882).

290107438 is a wasteful number, since it uses less digits than its factorization.

290107438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27722.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 290107438 is about 17032.5405621123. The cubic root of 290107438 is about 661.9923253431.

The spelling of 290107438 in words is "two hundred ninety million, one hundred seven thousand, four hundred thirty-eight".

Divisors: 1 2 7001 14002 20719 41438 145053719 290107438