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10561390 = 257312157
BaseRepresentation
bin101000010010…
…011101101110
3201212120111121
4220102131232
510200431030
61014211154
7155525140
oct50223556
921776447
1010561390
115a63a24
123653aba
13225a258
14158cc90
15dd947a
hexa1276e

10561390 has 48 divisors (see below), whose sum is σ = 22592736. Its totient is φ = 3481920.

The previous prime is 10561387. The next prime is 10561409. The reversal of 10561390 is 9316501.

10561390 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 2×105613902 = 223085917464200, 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 23 ways as a sum of consecutive naturals, for example, 67192 + ... + 67348.

It is an arithmetic number, because the mean of its divisors is an integer number (470682).

Almost surely, 210561390 is an apocalyptic number.

10561390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10561390 is an abundant number, since it is smaller than the sum of its proper divisors (12031346).

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

10561390 is a wasteful number, since it uses less digits than its factorization.

10561390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 10561390 is about 3249.8292262825. The cubic root of 10561390 is about 219.4018877875.

Adding to 10561390 its reverse (9316501), we get a palindrome (19877891).

The spelling of 10561390 in words is "ten million, five hundred sixty-one thousand, three hundred ninety".

Divisors: 1 2 5 7 10 14 31 35 62 70 155 157 217 310 314 434 785 961 1085 1099 1570 1922 2170 2198 4805 4867 5495 6727 9610 9734 10990 13454 24335 33635 34069 48670 67270 68138 150877 170345 301754 340690 754385 1056139 1508770 2112278 5280695 10561390