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925990 = 251317419
BaseRepresentation
bin11100010000100100110
31202001012221
43202010212
5214112430
631502554
710604452
oct3420446
91661187
10925990
1158278a
12387a5a
13265630
141a1662
1513457a
hexe2126

925990 has 32 divisors (see below), whose sum is σ = 1905120. Its totient is φ = 321024.

The previous prime is 925987. The next prime is 925997. The reversal of 925990 is 99529.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (925997) 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, 2001 + ... + 2419.

It is an arithmetic number, because the mean of its divisors is an integer number (59535).

2925990 is an apocalyptic number.

925990 is an abundant number, since it is smaller than the sum of its proper divisors (979130).

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

925990 is a wasteful number, since it uses less digits than its factorization.

925990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 925990 is about 962.2837419389. The cubic root of 925990 is about 97.4695061333.

The spelling of 925990 in words is "nine hundred twenty-five thousand, nine hundred ninety".

Divisors: 1 2 5 10 13 17 26 34 65 85 130 170 221 419 442 838 1105 2095 2210 4190 5447 7123 10894 14246 27235 35615 54470 71230 92599 185198 462995 925990