Search a number
-
+
90360715 = 522381041
BaseRepresentation
bin1010110001011…
…00101110001011
320022000210121011
411120230232023
5141113020330
612544424351
72145024214
oct530545613
9208023534
1090360715
1147008385
12263180b7
131594a1a3
14c00240b
157ded82a
hex562cb8b

90360715 has 8 divisors (see below), whose sum is σ = 108920448. Its totient is φ = 71963520.

The previous prime is 90360671. The next prime is 90360719. The reversal of 90360715 is 51706309.

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

It is not a de Polignac number, because 90360715 - 215 = 90327947 is a prime.

It is a super-4 number, since 4×903607154 (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90360719) 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, 39406 + ... + 41635.

It is an arithmetic number, because the mean of its divisors is an integer number (13615056).

Almost surely, 290360715 is an apocalyptic number.

90360715 is a deficient number, since it is larger than the sum of its proper divisors (18559733).

90360715 is a wasteful number, since it uses less digits than its factorization.

90360715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81269.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 90360715 is about 9505.8253192450. The cubic root of 90360715 is about 448.7383839452.

The spelling of 90360715 in words is "ninety million, three hundred sixty thousand, seven hundred fifteen".

Divisors: 1 5 223 1115 81041 405205 18072143 90360715