Search a number
-
+
10642620 = 2235891993
BaseRepresentation
bin101000100110…
…010010111100
3202000200221010
4220212102330
510211030440
61020035220
7156314022
oct50462274
922020833
1010642620
116009a5a
123692b10
132288211
1415b0712
15e03580
hexa264bc

10642620 has 48 divisors (see below), whose sum is σ = 30149280. Its totient is φ = 2804736.

The previous prime is 10642607. The next prime is 10642637. The reversal of 10642620 is 2624601.

It is a happy number.

It is a super-2 number, since 2×106426202 = 226530720928800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4344 + ... + 6336.

It is an arithmetic number, because the mean of its divisors is an integer number (628110).

Almost surely, 210642620 is an apocalyptic number.

10642620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10642620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15074640).

10642620 is an abundant number, since it is smaller than the sum of its proper divisors (19506660).

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

10642620 is a wasteful number, since it uses less digits than its factorization.

10642620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094 (or 2092 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 10642620 is about 3262.3028676075. The cubic root of 10642620 is about 219.9629414163.

The spelling of 10642620 in words is "ten million, six hundred forty-two thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 89 178 267 356 445 534 890 1068 1335 1780 1993 2670 3986 5340 5979 7972 9965 11958 19930 23916 29895 39860 59790 119580 177377 354754 532131 709508 886885 1064262 1773770 2128524 2660655 3547540 5321310 10642620