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90454037 = 496718211
BaseRepresentation
bin1010110010000…
…11100000010101
320022012112121112
411121003200111
5141124012122
612550424405
72145563252
oct531034025
9208175545
1090454037
1147071503
1226362105
13159807cb
14c028429
157e1b2e2
hex5643815

90454037 has 4 divisors (see below), whose sum is σ = 90477216. Its totient is φ = 90430860.

The previous prime is 90454027. The next prime is 90454097. The reversal of 90454037 is 73045409.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90454037 - 224 = 73676821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90453994 and 90454012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90454027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4139 + ... + 14072.

It is an arithmetic number, because the mean of its divisors is an integer number (22619304).

Almost surely, 290454037 is an apocalyptic number.

It is an amenable number.

90454037 is a deficient number, since it is larger than the sum of its proper divisors (23179).

90454037 is a wasteful number, since it uses less digits than its factorization.

90454037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23178.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 90454037 is about 9510.7327267672. The cubic root of 90454037 is about 448.8928122467.

The spelling of 90454037 in words is "ninety million, four hundred fifty-four thousand, thirty-seven".

Divisors: 1 4967 18211 90454037