Search a number
-
+
997528 = 23747379
BaseRepresentation
bin11110011100010011000
31212200100111
43303202120
5223410103
633214104
711323150
oct3634230
91780314
10997528
11621504
12401334
1328c06c
141bd760
1514a86d
hexf3898

997528 has 32 divisors (see below), whose sum is σ = 2188800. Its totient is φ = 417312.

The previous prime is 997511. The next prime is 997541. The reversal of 997528 is 825799.

997528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9975282 = 1990124221568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2443 + ... + 2821.

It is an arithmetic number, because the mean of its divisors is an integer number (68400).

2997528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 997528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1094400).

997528 is an abundant number, since it is smaller than the sum of its proper divisors (1191272).

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

997528 is a wasteful number, since it uses less digits than its factorization.

997528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 435 counting only the distinct ones).

The product of its digits is 45360, while the sum is 40.

The square root of 997528 is about 998.7632352064. The cubic root of 997528 is about 99.9175320090.

The spelling of 997528 in words is "nine hundred ninety-seven thousand, five hundred twenty-eight".

Divisors: 1 2 4 7 8 14 28 47 56 94 188 329 376 379 658 758 1316 1516 2632 2653 3032 5306 10612 17813 21224 35626 71252 124691 142504 249382 498764 997528