Search a number
-
+
90430086 = 231031311117
BaseRepresentation
bin1010110001111…
…01101010000110
320022011022202110
411120331222012
5141122230321
612550121450
72145433365
oct530755206
9208138673
1090430086
114705550a
1226350286
1315972936
14c01d7dc
157e14176
hex563da86

90430086 has 32 divisors (see below), whose sum is σ = 184174848. Its totient is φ = 29596320.

The previous prime is 90430079. The next prime is 90430097. The reversal of 90430086 is 68003409.

It is a super-3 number, since 3×904300863 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80400 + ... + 81516.

It is an arithmetic number, because the mean of its divisors is an integer number (5755464).

Almost surely, 290430086 is an apocalyptic number.

90430086 is an abundant number, since it is smaller than the sum of its proper divisors (93744762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90430086 is a wasteful number, since it uses less digits than its factorization.

90430086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 90430086 is about 9509.4734870023. The cubic root of 90430086 is about 448.8531885101.

The spelling of 90430086 in words is "ninety million, four hundred thirty thousand, eighty-six".

Divisors: 1 2 3 6 103 131 206 262 309 393 618 786 1117 2234 3351 6702 13493 26986 40479 80958 115051 146327 230102 292654 345153 438981 690306 877962 15071681 30143362 45215043 90430086