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29750090 = 252975009
BaseRepresentation
bin111000101111…
…1001101001010
32001222110110012
41301133031022
530104000330
62541351522
7510604646
oct161371512
961873405
1029750090
111587a757
129b685a2
136218306
143d45c26
152929c95
hex1c5f34a

29750090 has 8 divisors (see below), whose sum is σ = 53550180. Its totient is φ = 11900032.

The previous prime is 29750089. The next prime is 29750093. The reversal of 29750090 is 9005792.

It can be written as a sum of positive squares in 2 ways, for example, as 26863489 + 2886601 = 5183^2 + 1699^2 .

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

It is not an unprimeable number, because it can be changed into a prime (29750093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1487495 + ... + 1487514.

Almost surely, 229750090 is an apocalyptic number.

29750090 is a deficient number, since it is larger than the sum of its proper divisors (23800090).

29750090 is a wasteful number, since it uses less digits than its factorization.

29750090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2975016.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 29750090 is about 5454.3643075981. The cubic root of 29750090 is about 309.8580341983.

The spelling of 29750090 in words is "twenty-nine million, seven hundred fifty thousand, ninety".

Divisors: 1 2 5 10 2975009 5950018 14875045 29750090