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90574730 = 2528132233
BaseRepresentation
bin1010110011000…
…00111110001010
320022102200011122
411121200332022
5141141342410
612553155242
72146605161
oct531407612
9208380148
1090574730
1147144154
12263bbb22
13159c371c
14c05a3d8
157e41e55
hex5660f8a

90574730 has 16 divisors (see below), whose sum is σ = 163619784. Its totient is φ = 36099840.

The previous prime is 90574723. The next prime is 90574733. The reversal of 90574730 is 3747509.

It can be written as a sum of positive squares in 4 ways, for example, as 84953089 + 5621641 = 9217^2 + 2371^2 .

It is not an unprimeable number, because it can be changed into a prime (90574733) 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 7 ways as a sum of consecutive naturals, for example, 13307 + ... + 18926.

Almost surely, 290574730 is an apocalyptic number.

90574730 is a deficient number, since it is larger than the sum of its proper divisors (73045054).

90574730 is a wasteful number, since it uses less digits than its factorization.

90574730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32521.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 90574730 is about 9517.0757063291. The cubic root of 90574730 is about 449.0923763684.

The spelling of 90574730 in words is "ninety million, five hundred seventy-four thousand, seven hundred thirty".

Divisors: 1 2 5 10 281 562 1405 2810 32233 64466 161165 322330 9057473 18114946 45287365 90574730