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290957429 = 7231807189
BaseRepresentation
bin10001010101111…
…010100001110101
3202021111011120002
4101111322201311
51043441114204
644512121045
710132045250
oct2125724165
9667434502
10290957429
1113a268694
1281536185
1348382c79
142a8dc097
151a82491e
hex1157a875

290957429 has 8 divisors (see below), whose sum is σ = 346980480. Its totient is φ = 238548816.

The previous prime is 290957411. The next prime is 290957453. The reversal of 290957429 is 924759092.

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

It is a cyclic number.

It is not a de Polignac number, because 290957429 - 216 = 290891893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290957489) 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, 903434 + ... + 903755.

It is an arithmetic number, because the mean of its divisors is an integer number (43372560).

Almost surely, 2290957429 is an apocalyptic number.

It is an amenable number.

290957429 is a deficient number, since it is larger than the sum of its proper divisors (56023051).

290957429 is a wasteful number, since it uses less digits than its factorization.

290957429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807219.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 290957429 is about 17057.4742854855. The cubic root of 290957429 is about 662.6382226843.

The spelling of 290957429 in words is "two hundred ninety million, nine hundred fifty-seven thousand, four hundred twenty-nine".

Divisors: 1 7 23 161 1807189 12650323 41565347 290957429