Search a number
-
+
2258750431 = 76722921031
BaseRepresentation
bin1000011010100001…
…1100101111011111
312211102020102002101
42012220130233133
514111220003211
61012044505531
7106655030140
oct20650345737
95742212071
102258750431
11a5a0076a3
1253054b2a7
1329cc61922
14175db1ac7
15d34745c1
hex86a1cbdf

2258750431 has 16 divisors (see below), whose sum is σ = 2631523840. Its totient is φ = 1898756640.

The previous prime is 2258750401. The next prime is 2258750437. The reversal of 2258750431 is 1340578522.

It is a cyclic number.

It is not a de Polignac number, because 2258750431 - 211 = 2258748383 is a prime.

It is a super-2 number, since 2×22587504312 = 10203907019085371522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2258750437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96886 + ... + 117916.

It is an arithmetic number, because the mean of its divisors is an integer number (164470240).

Almost surely, 22258750431 is an apocalyptic number.

2258750431 is a deficient number, since it is larger than the sum of its proper divisors (372773409).

2258750431 is a wasteful number, since it uses less digits than its factorization.

2258750431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21334.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 2258750431 is about 47526.3130381476. The cubic root of 2258750431 is about 1312.0672120581.

The spelling of 2258750431 in words is "two billion, two hundred fifty-eight million, seven hundred fifty thousand, four hundred thirty-one".

Divisors: 1 7 67 229 469 1603 15343 21031 107401 147217 1409077 4816099 9863539 33712693 322678633 2258750431