Search a number
-
+
28432495 = 5721379113
BaseRepresentation
bin110110001110…
…1100001101111
31222111112001101
41230131201233
524234314440
62453223531
7463446400
oct154354157
958445041
1028432495
111505a833
129631ba7
135b76680
143ac19a7
15276969a
hex1b1d86f

28432495 has 48 divisors (see below), whose sum is σ = 43666560. Its totient is φ = 17611776.

The previous prime is 28432489. The next prime is 28432501. The reversal of 28432495 is 59423482.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28432489) and next prime (28432501).

It is not a de Polignac number, because 28432495 - 215 = 28399727 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 251559 + ... + 251671.

It is an arithmetic number, because the mean of its divisors is an integer number (909720).

Almost surely, 228432495 is an apocalyptic number.

28432495 is a deficient number, since it is larger than the sum of its proper divisors (15234065).

28432495 is a wasteful number, since it uses less digits than its factorization.

28432495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 217 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 28432495 is about 5332.2129552373. The cubic root of 28432495 is about 305.2143794252.

The spelling of 28432495 in words is "twenty-eight million, four hundred thirty-two thousand, four hundred ninety-five".

Divisors: 1 5 7 13 35 49 65 79 91 113 245 395 455 553 565 637 791 1027 1469 2765 3185 3871 3955 5135 5537 7189 7345 8927 10283 19355 27685 35945 44635 50323 51415 62489 71981 116051 251615 312445 359905 437423 580255 812357 2187115 4061785 5686499 28432495