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90703199 = 139652541
BaseRepresentation
bin1010110100000…
…00010101011111
320022200012101202
411122000111133
5141210000244
613000030115
72150651546
oct532002537
9208605352
1090703199
1147221724
122646233b
1315a3a042
14c09115d
157e6a04e
hex568055f

90703199 has 4 divisors (see below), whose sum is σ = 91355880. Its totient is φ = 90050520.

The previous prime is 90703189. The next prime is 90703219. The reversal of 90703199 is 99130709.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99130709 = 866311443.

It is a cyclic number.

It is not a de Polignac number, because 90703199 - 24 = 90703183 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90703159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326132 + ... + 326409.

It is an arithmetic number, because the mean of its divisors is an integer number (22838970).

Almost surely, 290703199 is an apocalyptic number.

90703199 is a deficient number, since it is larger than the sum of its proper divisors (652681).

90703199 is a wasteful number, since it uses less digits than its factorization.

90703199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652680.

The product of its (nonzero) digits is 15309, while the sum is 38.

The square root of 90703199 is about 9523.8227093956. The cubic root of 90703199 is about 449.3046033052.

The spelling of 90703199 in words is "ninety million, seven hundred three thousand, one hundred ninety-nine".

Divisors: 1 139 652541 90703199