Search a number
-
+
89430237 = 3413247139
BaseRepresentation
bin1010101010010…
…01100011011101
320020021112020000
411111021203131
5140343231422
612512444513
72134100361
oct525114335
9206245200
1089430237
1146532296
1225b49739
13156b2800
14bc3d2a1
157cb7cac
hex55498dd

89430237 has 60 divisors (see below), whose sum is σ = 148800960. Its totient is φ = 53475552.

The previous prime is 89430223. The next prime is 89430241. The reversal of 89430237 is 73203498.

It is not a de Polignac number, because 89430237 - 211 = 89428189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89430277) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 643314 + ... + 643452.

It is an arithmetic number, because the mean of its divisors is an integer number (2480016).

Almost surely, 289430237 is an apocalyptic number.

It is an amenable number.

89430237 is a deficient number, since it is larger than the sum of its proper divisors (59370723).

89430237 is a wasteful number, since it uses less digits than its factorization.

89430237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 89430237 is about 9456.7561563149. The cubic root of 89430237 is about 447.1927910322.

The spelling of 89430237 in words is "eighty-nine million, four hundred thirty thousand, two hundred thirty-seven".

Divisors: 1 3 9 13 27 39 47 81 117 139 141 169 351 417 423 507 611 1053 1251 1269 1521 1807 1833 3753 3807 4563 5421 5499 6533 7943 11259 13689 16263 16497 19599 23491 23829 48789 49491 58797 70473 71487 84929 146367 176391 211419 214461 254787 529173 634257 643383 764361 1104077 1902771 2293083 3312231 6879249 9936693 29810079 89430237