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91968050 = 2521839361
BaseRepresentation
bin1010111101101…
…01001000110010
320102001110110002
411132311020302
5142020434200
613043110002
72164500266
oct536651062
9212043402
1091968050
1147a05a59
1226972302
1316090985
14c3000a6
158119bd5
hex57b5232

91968050 has 12 divisors (see below), whose sum is σ = 171060666. Its totient is φ = 36787200.

The previous prime is 91968047. The next prime is 91968059. The reversal of 91968050 is 5086919.

It can be written as a sum of positive squares in 3 ways, for example, as 89624089 + 2343961 = 9467^2 + 1531^2 .

It is a super-3 number, since 3×919680503 (a number of 25 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 91967995 and 91968013.

It is not an unprimeable number, because it can be changed into a prime (91968059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 919631 + ... + 919730.

Almost surely, 291968050 is an apocalyptic number.

91968050 is a deficient number, since it is larger than the sum of its proper divisors (79092616).

91968050 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 13 representation: 91968050 = (16090985)13.

91968050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839373 (or 1839368 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 91968050 is about 9589.9973931175. The cubic root of 91968050 is about 451.3834789025.

The spelling of 91968050 in words is "ninety-one million, nine hundred sixty-eight thousand, fifty".

Divisors: 1 2 5 10 25 50 1839361 3678722 9196805 18393610 45984025 91968050