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90347269 = 1078271021
BaseRepresentation
bin1010110001010…
…01011100000101
320022000010011011
411120221130011
5141112103034
612544242221
72144640055
oct530513405
9208003134
1090347269
1146aa9271
1226310371
131594402c
14bddb565
157de9864
hex5629705

90347269 has 8 divisors (see below), whose sum is σ = 91391328. Its totient is φ = 89307120.

The previous prime is 90347251. The next prime is 90347291. The reversal of 90347269 is 96274309.

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 90347269 - 29 = 90346757 is a prime.

It is a super-2 number, since 2×903472692 = 16325258031516722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90347239) 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, 87979 + ... + 88999.

It is an arithmetic number, because the mean of its divisors is an integer number (11423916).

Almost surely, 290347269 is an apocalyptic number.

It is an amenable number.

90347269 is a deficient number, since it is larger than the sum of its proper divisors (1044059).

90347269 is a wasteful number, since it uses less digits than its factorization.

90347269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 90347269 is about 9505.1180424022. The cubic root of 90347269 is about 448.7161248783.

The spelling of 90347269 in words is "ninety million, three hundred forty-seven thousand, two hundred sixty-nine".

Divisors: 1 107 827 1021 88489 109247 844367 90347269