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30590390 = 253598521
BaseRepresentation
bin111010010110…
…0010110110110
32010120011010102
41310230112312
530312343030
63011354102
7521004545
oct164542666
963504112
1030590390
11162a4016
12a2b2932
13645092c
1440c415c
152a43c45
hex1d2c5b6

30590390 has 16 divisors (see below), whose sum is σ = 55222560. Its totient is φ = 12200640.

The previous prime is 30590383. The next prime is 30590393. The reversal of 30590390 is 9309503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30590393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671 + ... + 7850.

It is an arithmetic number, because the mean of its divisors is an integer number (3451410).

Almost surely, 230590390 is an apocalyptic number.

30590390 is a deficient number, since it is larger than the sum of its proper divisors (24632170).

30590390 is a wasteful number, since it uses less digits than its factorization.

30590390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8887.

The product of its (nonzero) digits is 3645, while the sum is 29.

The square root of 30590390 is about 5530.8579804584. The cubic root of 30590390 is about 312.7483338048.

Adding to 30590390 its reverse (9309503), we get a palindrome (39899893).

The spelling of 30590390 in words is "thirty million, five hundred ninety thousand, three hundred ninety".

Divisors: 1 2 5 10 359 718 1795 3590 8521 17042 42605 85210 3059039 6118078 15295195 30590390